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Bell & Ross BR 03-92 Steel BR0392-GR-ST/SCA Very good Steel 42mm Automatic South Africa, Pretoria
Bell & Ross Br 03-92 Horolum
R43 900
+ R470 for shipping
Professional dealer
4,69 (28)
ZA
Rolex GMT-Master 1675 Good Steel 40mm Automatic
Rolex GMT-Master 'Pepsi' Stainless Steel 1675 - W008532
R262 538
+ R1 919 for shipping
Sold by Chrono24
UK
Bell & Ross BR 03-94 Chronographe BR03-94 Very good Steel 42mm Automatic South Africa, Johannesburg
Bell & Ross Aviation Type Black Dial, S/Steel 42mm BR03-94 (2014)
R39 999
Free shipping
Professional dealer
4,84 (251)
ZA
Breitling Navitimer World A24322 Very good Steel 46mm Automatic
Breitling Navitimer World GMT 46 Automatik Stahl Herrenuhr...
R69 380
+ R1 542 for shipping
Sold by Chrono24
DE
Cartier Santos Dumont W2020057 Unworn Rose gold 38mm Automatic
Top
Cartier Santos de Cartier Rose Gold Skeleton Dial Watch W2020057
R706 147
Free shipping
Professional dealer
4,95 (293)
US
Breitling Navitimer A23322 Very good Steel 42mm Automatic South Africa, Cape Town
Breitling Navitimer
R85 483
Excl. shipping
Private Seller
ZA
IWC Big Pilot Top Gun IW502902 Very good Ceramic 48mm Automatic South Africa, Paarl
IWC Top Gun Perpetual Calendar Big Pilot
R389 000
Free shipping
Professional dealer
UK
Breitling Old Navitimer 81610 Very good Gold/Steel 41mm Automatic South Africa, Johannesburg
Breitling Old Navitimer Ref.81610 Steel and Gold
R64 786
Free shipping
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4,95 (59)
ZA
IWC Pilot Chronograph IW377714 New Steel 43mm Automatic
Top
IWC Pilots Watch Chronograph Petit Prince
R89 154
+ R4 083 for shipping
Professional dealer
4,92 (447)
CH
Breitling Navitimer 806 Fair Steel 41mm Manual winding South Africa, Pretoria
Breitling Navitimer
R78 900
+ R470 for shipping
Professional dealer
4,69 (28)
ZA
Rolex GMT-Master II 116713LN Good Gold/Steel 40mm Automatic
Rolex GMT-Master II Hercules Yellow Gold & Dlc Stainless...
R424 113
+ R1 919 for shipping
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UK
Bell & Ross BR V1 BRV123-BL-GMT/SRB Very good Steel 42mm Automatic South Africa, Johannesburg
Bell & Ross Golden Heritage Black Dial Brown Leather Strap...
R24 999
Free shipping
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4,84 (251)
ZA
Rolex GMT-Master II 116710LN Very good Steel 40mm Automatic
Rolex GMT-Master II Stahl Herrenuhr Oyster Perpetual Ref...
R295 509
+ R2 741 for shipping
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DE
Rolex GMT-Master 16750 Very good Steel 40mm Automatic
Rolex Spider Dial Pepsi GMT-Master with Box and Papers
R326 293
+ R3 644 for shipping
Professional dealer
4,96 (109)
US
Rolex GMT-Master II 16713 Very good Gold/Steel 40mm Automatic
Rolex GMT-Master II Steel and Gold 2003
R251 825
+ R2 570 for shipping
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4,94 (46)
FI
Rolex GMT-Master II 116710LN Very good Steel 40mm Automatic
Rolex GMT-Master II 116710LN - Box & Papers - 12-Month...
R265 588
+ R1 616 for shipping
Professional dealer
4,90 (335)
UK
Rolex GMT-Master II 16760 Good Steel 40mm Automatic South Africa, Johannesburg
Rolex Fat Lady II Ref.16760, Rare, Patina Dial, Faded Bezel
R233 228
Free shipping
Professional dealer
4,95 (59)
ZA
Rolex GMT-Master 1675 Very good Steel 40mm Automatic
Rolex GMT Master Pepsi Stahl 40 mm Jubileeband Stahl Plexiglas...
R308 185
+ R5 139 for shipping
Professional dealer
4,89 (373)
DE
Breitling Avenger E13360 Good Titanium 44mm Automatic South Africa, Pretoria
Breitling Avenger
R46 900
+ R470 for shipping
Professional dealer
4,69 (28)
ZA
Rolex GMT-Master 1675 Good Steel 40mm Automatic
Rolex GMT-Master Pepsi Gilt Dial Stainless Steel 1675 - COM1640
R444 309
+ R1 919 for shipping
Sold by Chrono24
UK
Breitling Galactic 32 A71356 Very good Steel 32mm Quartz South Africa, Johannesburg
Breitling Galactic Ladies, S/Steel on Leather, White Dial,...
R36 999
Free shipping
Professional dealer
4,84 (251)
ZA
Breguet Type XX - XXI - XXII 3800 Very good Steel 39mm Automatic
Breguet Type XX Aeronavale Flyback Chronograph Automatik Stahl...
R107 068
+ R2 741 for shipping
Sold by Chrono24
DE
Rolex GMT-Master II 16710 Very good Steel 40mm Automatic
Rolex Unpolished/Never-Polished GMT-Master II Pepsi, Complete Set
R273 444
+ R2 429 for shipping
Professional dealer
4,96 (109)
US
Rolex GMT-Master II 116710BLNR Unworn Steel 40mm Automatic
Rolex NEW GMT Master II Batman NEW Oyster Ceramic TOP
R393 155
+ R5 122 for shipping
Professional dealer
4,92 (118)
DE
Rolex GMT-Master II 116710BLNR New Steel 40mm Automatic
Rolex GMT-Master II Batman 116710BLNR NEW 2018
R409 429
+ R6 852 for shipping
Professional dealer
4,95 (154)
CH
Rolex GMT-Master 16750 Good Steel 40mm Automatic South Africa, Johannesburg
Rolex GMT-Master Ref.16750 'Pepsi', Faded Bezel, service...
R226 750
Free shipping
Professional dealer
4,95 (59)
ZA
Rolex GMT-Master II 116710BLNR Very good Steel 40mm
Rolex GMT-Master II Batman 2016 - 116710BLNR - GMT-Master II /...
R332 169
+ R5 996 for shipping
Professional dealer
4,83 (20)
DE
Breitling Chronospace A78365 Unworn Steel 48mm Quartz South Africa, Pretoria
Breitling Chronospace Boeing 787 Special Edition
R71 900
+ R470 for shipping
Professional dealer
4,69 (28)
ZA
Rolex GMT-Master II 116710BLNR Very good Steel 40mm Automatic
Rolex GMT-Master II "Batman" Stainless Steel 116710BLNR - Just...
R363 522
+ R1 919 for shipping
Sold by Chrono24
UK
Rolex GMT-Master 16750 Very good Steel 40mm Automatic South Africa, Johannesburg
Rolex Oyster Perpetual Date GMT-Master II Pepsi, Oystersteel,...
R239 999
Free shipping
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4,84 (251)
ZA

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Breitling Montbrillant Datora A21330 Very good Steel 42mm Automatic
Breitling Montbrillant Datora Chronograph Automatik Stahl...
R65 954
+ R1 542 for shipping
Sold by Chrono24
DE
Rolex GMT-Master II 116710LN Very good Steel 40mm Automatic
Rolex GMT Master II Ceramic, Rectangle Dial. Ref: 116710LN (2008)
R231 253
+ R1 818 for shipping
Professional dealer
4,86 (171)
UK
Breitling Navitimer A13330 Very good Steel 41mm Automatic
Breitling Navitimer 41 mm Chronograph Steel Automatic Breitlin...
R76 918
+ R5 139 for shipping
Professional dealer
4,89 (373)
DE
Rolex GMT-Master II 116710LN Unworn Steel 40mm Automatic
Rolex NEW FULL SET GMT Master II Keramik Ceramic NEU
R341 762
+ R5 122 for shipping
Professional dealer
4,92 (118)
DE
Rolex GMT-Master 1675 Good Steel 40mm Automatic South Africa, Johannesburg
Rolex GMT-Master 'Pepsi' Ref.1675 Circa 1979 Matte Dial, Faded...
R356 321
Free shipping
Professional dealer
4,95 (59)
ZA
Rolex GMT-Master II 116710LN Very good Steel 40mm Automatic
Rolex GMT-Master II 116710LN Mint Conditions Full Set 2013
R291 226
+ R5 139 for shipping
Professional dealer
4,86 (277)
IT
Breitling Chronospace Military M78366 Good Steel 46mm Quartz South Africa, Pretoria
Breitling Chronospace Military Watch
R59 900
+ R470 for shipping
Professional dealer
4,69 (28)
ZA
Rolex GMT-Master 16753 Very good Gold/Steel 40mm Automatic
Rolex GMT-Master Nipple Dial Yellow Gold & Stainless Steel...
R242 341
+ R1 919 for shipping
Sold by Chrono24
UK
IWC Big Pilot Top Gun IW501903 Very good Ceramic 48.6mm Automatic South Africa, Johannesburg
IWC Top Gun Boutique Big Edition Black Dial Black Leather...
R175 999
Free shipping
Professional dealer
4,84 (251)
ZA
IWC Pilot Chronograph IW3717 Very good Steel 42mm Automatic
IWC WC Schaffhausen Fliegeruhr Chronograph Automatik Stahl...
R74 520
+ R1 542 for shipping
Sold by Chrono24
DE
Rolex GMT-Master II 16710 Very good Steel 40mm Automatic
Rolex GMT-Master II 16710 Coke Full-Set 2001
R261 932
+ R857 for shipping
Professional dealer
4,91 (32)
DE
IWC Big Pilot IW500906 Very good Steel 46mm Automatic
IWC Big Pilot Father IW500906 46mm Great Condition
R186 259
+ R2 429 for shipping
Professional dealer
4,83 (20)
US
Rolex GMT-Master 16700 Very good Steel 40mm Automatic
Rolex GMT Master, Swiss Only Dial, Faded 'Pepsi'. Ref: 16700 ...
R322 139
+ R1 818 for shipping
Professional dealer
4,86 (171)
UK
Rolex GMT-Master 1675 Good Steel 40mm Automatic South Africa, Johannesburg
Rolex GMT-Master 'Pepsi' Ref.1675 Circa 1975 Matte Dial, Faded...
R340 124
Free shipping
Professional dealer
4,95 (59)
ZA
Rolex GMT-Master II 116713LN Very good Gold/Steel 40mm Automatic
Rolex GMT-Master II 116713LN Unpolished Full Set 2013
R308 357
+ R5 139 for shipping
Professional dealer
4,86 (277)
IT
Breitling Avenger Skyland A13380 Good Steel 45mm Automatic South Africa, Pretoria
Breitling Avenger Skyland
R59 900
+ R470 for shipping
Professional dealer
4,69 (28)
ZA
IWC Pilot Chronograph IW377710 Very good Steel 43mm Automatic
IWC Pilot's Chronograph Stainless Steel IW377710 - Manufacture...
R100 964
+ R1 919 for shipping
Sold by Chrono24
UK
Rolex GMT-Master II 116710LN Very good Steel 40mm Automatic South Africa, Johannesburg
Rolex GMT Master II Black Dial Ceramic Bezel Oyster Strap 40mm...
R299 999
Free shipping
Professional dealer
4,84 (251)
ZA
IWC Pilot Mark IW327001 Very good Steel 40mm Automatic
IWC Schaffhausen Mark XVIII Automatik Stahl Herrenuhr Ref....
R69 380
+ R1 542 for shipping
Sold by Chrono24
DE
Rolex GMT-Master II 16710 Very good Steel 40mm Automatic
Rolex GMT Master II Pepsi serviced 09/2020 top condition box...
R342 601
+ R3 409 for shipping
Professional dealer
4,94 (571)
DE
Breitling Navitimer 1461 A38022 Very good Steel 41mm Automatic
Breitling Navitimer 1461 41 mm Chronograph Stahl Automatic...
R85 483
+ R5 139 for shipping
Professional dealer
4,89 (373)
DE
Rolex GMT-Master II 116710LN Very good Steel 40mm Automatic
Rolex GMT-Master II M-Series I Ref. 116710LN
R244 801
Free shipping
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4,76 (134)
DE
Rolex GMT-Master 16750 Very good Steel 40mm Automatic South Africa, Johannesburg
Rolex GMT-Master 'Pepsi' Ref.16750, Circa 1984, Patina dial
R226 750
Free shipping
Professional dealer
4,95 (59)
ZA
Bell & Ross Vintage BRWW197-HER-ST/SCR New Steel 45mm Automatic
Bell & Ross Heritage
R54 663
+ R2 591 for shipping
Professional dealer
4,87 (696)
US
Breitling Chrono Cockpit A13358 Good Steel 39mm Automatic South Africa, Pretoria
Breitling Chrono Cockpit
R36 900
+ R470 for shipping
Professional dealer
4,69 (28)
ZA
Rolex GMT-Master II 116710LN Steel 40mm Automatic
Rolex GMT-Master II Stainless Steel 116710LN - Just Serviced...
R292 833
+ R1 919 for shipping
Sold by Chrono24
UK
Rolex GMT-Master II 16713 Very good Gold/Steel 40mm Automatic South Africa, Johannesburg
Rolex GMT Master II Rootbeer Dial 18ct YG/Steel Jubilee Strap...
R274 999
Free shipping
Professional dealer
4,84 (251)
ZA
IWC Pilot Spitfire UTC 3251 Very good Steel 39mm Automatic
IWC TZC Die Fliegeruhr UTC Automatik Datum Edelstahl Herrenuhr...
R62 014
+ R1 542 for shipping
Sold by Chrono24
DE
Bell & Ross BR 01-96 Grande Date BR01-96 Poor Steel 46mm Automatic
Bell & Ross Big Date / Grand Date BR01-96B-CA Automatic
R27 847
+ R1 263 for shipping
Professional dealer
5,00 (13)
JP
Patek Philippe Travel Time 5524G-001 New White gold 42mm Automatic
Patek Philippe Calatrava Pilot Travel Time White gold 5524G-001
R1 007 416
+ R5 352 for shipping
Professional dealer
4,86 (98)
UK
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Pilot's Watches: Functionality for the Highest Demands

Pilot's watches are precise instruments as well as stylish accessories. Originally designed for pilots, they have developed into one of the most beloved types of watches. Breitling and IWC are two of the most well-known producers of pilot's watches.


5 Reasons to Buy a Pilot's Watch

  • Excellent legibility day and night
  • The iconic IWC Mark XI features a typical pilot's watch design
  • The Breitling Navitimer: a cult chronograph with a slide rule
  • Pre-owned brand-name models for under 1,100 USD
  • Some watches from Sinn and Stowa are certified pilot's watches

From the Cockpit to the Desk

Pilot's watches are best described as large, clear, and functional. These popular timepieces have their roots in the military, which is why they are the perfect example of the 'form follows function' principle. Today, they are one of the most popular watch types, loved by everyone from pilots to executives.

Thanks to their simple design, pilot's watches are extraordinarily easy to read. The dial is usually black, while the hands and markers are both white and coated in luminous material. This guarantees optimum readability, even in dark conditions.

There has been a uniform standard for pilot's watches since 2012. German manufacturers like Sinn and Stowa have their pilot's watches certified according to this standard, meaning the reliability of their watches has been proven under extreme conditions.

Breitling and IWC are two of the most famous Swiss manufacturers of pilot's watches. Watches like the Breitling Navitimer and the IWC Mark XI are famous the world over. The design of the IWC Mark XI has served as the inspiration for innumerable pilot's watches. The Navitimer chronograph went down in watchmaking history with its slide rule bezel. Wearers can use it to make various mathematical calculations, such as rates of climb and descent, speed, and fuel consumption, among others.


How much do pilot's watches cost?

Model Price (approx.) Size (in mm) Complications
Rolex GMT Master II Pepsi 21,300 USD 40 GMT
Rolex GMT Master II Batman 11,000 USD 40 GMT
IWC Mark XI (Vintage) 7,500 USD 36
Breitling Chronomat 44 GMT 7,500 USD 44 Chronograph, GMT
Breitling Navitimer 01 5,900 USD 43 Chronograph, slide rule, date
IWC Pilot's Watch Chronograph 4,600 USD 43 Chronograph, day-date
IWC Pilot's Watch Mark XVIII 4,500 USD 40 Date
Sinn 103 Ti UTC TESTAF 3,200 USD 41 Chronograph, GMT, date

Detailed Price Information

If you're interested in buying a pilot's watch, you can choose from a large selection of models from different brands. With such an expansive collection, there's certain to be the perfect watch for every budget. More affordable watches under 1,100 USD are available from Breitling. The Breitling Aerospace has the brand's characteristic bezel rider tabs at 3, 6, 9, and 12 o'clock. Inside its case, you will find an incredibly precise quartz movement. It's available for around 900 USD pre-owned. A used Breitling Chronomat can also be had for less than 1,100 USD.

You can find numerous pre-owned Breitling watches for between 1,000 and 3,000 USD. Pilot's watches from the French manufacturer Bell & Ross are also available in this price range. Pre-owned pilot's chronographs from IWC cost around 2,300 USD. Three-hand models are available for less than 2,300 USD. IWC chronographs in good condition cost around 2,900 USD.

The 857 UTC watch from Sinn is available with or without a pilot's watch certificate. Both versions cost about the same. You should plan on spending about 2,200 USD on a new model. A new chronograph Sinn 103 Ti TESTAF costs around 3,000 USD. New models with a chronograph and GMT function cost around 3,200 USD.

You can find Rolex's GMT-Master for under 11,400 USD. The Genevan manufacturer developed the GMT watch in the mid-1950s based on the demands of commercial pilots. The American airline Pan American World Airways (Pan Am) used the GMT-Master as their official watch.

One of the most popular GMT-Master II models comes with a black and blue ceramic bezel and is known as 'Batman.' You can purchase this timepiece for around 11,000 USD in mint condition. Pre-owned examples cost a few hundred dollars less. The GMT-Master II Pepsi, ref. 126710BLRO was presented at Baselworld 2018 and sells for over 20,500 USD. Its official list price sits at 8,800 CHF, or around 9,000 USD.


What Makes Pilot's Watches Special

Pilot's watches are especially easy to read. They usually feature black dials with white hour markers and large hands. What's more, the hands and markers are coated in luminous material so that they glow in the dark. Additionally, most models include a triangular marker at 12 o'clock. Minute indices and Arabic numerals for the hours make telling the time even easier.

Many pilot's watches come with a chronograph function or even a flyback chronograph. One such example is the Heuer Bund, produced by Heuer in the late 1960s for the German military. While coveted among collectors, these vintage watches are still affordable at around 5,700 USD.


The Most Popular Pilot's Watches

The Breitling Navitimer is one of the most famous and popular pilot's watches. This iconic chronograph features a slide rule bezel, which can be used to perform mathematical calculations. The Navitimer is also available with the in-house Breitling caliber 01 with a 70-hour power reserve. This 46-mm version is especially readable. Top models in this collection have an in-house caliber with a split-seconds chronograph used to measure intervals. The Navitimer comes in stainless steel, gold, or a combination of both.

IWC pilot's watches are also some of the most highly sought after on the market. Their design set the standard for this watch type. The retro Big Pilot's Heritage models are inspired by historic pilot's watches. The 48-mm edition is particularly large and easy to read. Due to their large crowns, operating these retro pilot's watches is remarkably simple. In addition to the basic three-hand models, the IWC line of pilot's watches also includes chronographs.

American watch manufacturer Hamilton also made a name for itself with pilot's watches. In 1904, they became the official supplier of the US Armed Forces. Fourteen years later, they turned their sights upward. Since then, Hamilton watches have taken part in many historic moments, from the first airmail service flight between DC and New York to the first flight from California to Hawai'i. During World War II, the company focused solely on the production of military timepieces. Their pocket and wristwatches saw action from the land and sea to the skies. Since 1945, Hamilton watches have continued to reliably display the time to soldiers and civilians alike. Today, the various models of the Hamilton Khaki Aviation collection continue this tradition in affordable style. Many new pieces can be found for under or around 500 USD, while limited editions can cost upward of 3,000 USD. Depending on its condition, vintage timepieces can range from under 100 to several thousand USD for bomb timers or the extremely rare Hamilton "Count-Down" GMT Chrono-Matic.


The Historic Significance of Pilot's Watches

The Cartier Santos is considered the first pilot's watch. Louis Cartier developed this square wristwatch in 1904 for the Brazilian aviation pioneer Alberto Santos Dumont. Two years later, Dumont flew the first official flight in a motorized airplane. During the flight, he wore the Santos, allowing him to keep both hands on the controls while still keeping an eye on the time.

The roots of modern-day pilot's watches go all the way back to pocket watches — or, more accurately, deck watches used in high-sea navigation. These were portable pocket watches that supplemented a ship's marine chronometer. The marine chronometer was anchored to the ship and mounted on three freely moving axles, keeping the dial face up even during heavy swells. In this position, the highly precise marine chronometer was regulated, and sailors used it to determine their exact location. During long trips at sea, watches accurate to the second were indispensable for navigation.

The officers on board synchronized their deck watches with the marine chronometer and returned to the deck to determine their position via sextant. The deck watches had very precise movements, but due to the extreme deviations in temperature and different positions, they weren't as precise as the marine chronometer.

At the beginning of the 20th century, pilots used these deck watches during flights. They would solder metal pieces to the watches and loop thick leather straps through them. When modified this way, they could wear the deck watches on their thighs or over a flight suit. These pilot's watches were easily identifiable by their large crowns, which also allowed the wearer to set the time with gloves on.

Later, deck watches received their characteristic pilot's watch design. A black dial with yellow numerals became a defining feature of these timepieces. At the beginning of the 20th century, manufacturers started using the luminous, radioactive material radium. Today, they use the luminescent, non-radioactive material Superluminova. Black dials have some obvious advantages: There's no glare, and together with luminous indices and hands, they are easy to read at twilight and at night.

Most pilot's watches from the early 20th century also featured a stop-seconds mechanism. This allowed the wearer to set the watch to the exact second, which is necessary to navigate accurately. One of the most important German manufacturers of these types of watches was the Glashütte-based company A. Lange & Söhne. During the Second World War, they produced pilot's watches exclusively for the military. These watches are very rare today. Just as rare are German pilot's chronographs, which were produced by manufacturers such as Tutima and Junghans. The movements powering these watches originally came from Glashütte. Altogether, there are only 300 to 400 of these vintage watches remaining from the 1930s and 40s, and they cost upwards of 34,000 USD each.

Historical Highlights

  • Origins tracing back to deck watches used on ships
  • Deck watches with leather straps were the first pilot's watches
  • Cartier Santos: the first true pilot's watch in the form of a wristwatch
  • A. Lange & Söhne was one of the most important manufacturers of German pilot's watches

IWC Mark XI: The Cult Pilot's Watch

The IWC Mark XI is a classic pilot's watch. The Swiss manufacturer IWC produced the watch starting at the end of the 1940s. The Mark XI was a smaller version of the Mark X. For around 30 years, IWC delivered the Mark XI to numerous air forces around the world. This simple, manual watch featured no chronograph function. Therefore, it was comparably inexpensive at 350 Swiss francs. Now, it costs between 5,700 and 10,300 USD. The watch had a characteristic black dial with bright luminous numerals and a triangle at 12 o'clock. To this day, manufacturers such as Fortis still produce pilot's watches with this simple, iconic design.


The Standard for Pilot's Watches: DIN 8330

An official standard for pilot's watches has existed since early 2016: the German DIN 8330. The watch manufacturer Sinn Spezialuhren initiated the process of developing this standard. The German Institute for Standardization (DIN) decided in the summer of 2013 to create a new standard for pilot's watches based on the Technical Standard for Pilot's Watches (TESTAF). This standard is oriented to meet the challenges of modern aviation. The aerospace engineering department at the Aachen University of Applied Sciences developed the TESTAF together with Sinn Spezialuhren in 2012. According to DIN 8330, pilot's wristwatches must be compatible with other onboard instruments, pose no risk to the aircraft and crew, and must be able to withstand the physical stressors of flight.

DIN 8330 differentiates between visual flight rules (VFR) and instrument flight rules (IFR). Watches certified according to IFR require a stopwatch function and are thus chronographs. Watches certified to VFR have a 12-hour as well as a 60-minute display. The central second hand must feature a mechanism so it can be stopped to the exact second. Furthermore, the standard requires the watch to have a bidirectional rotatable bezel with minute markers and ratcheting. The dial and scale background must be matte black, and the diameter of the dial must not be smaller than 27 mm. The watch has to be easily legible, and thus the hour indices, triangular marker on the bezel, and the hour, minute, and second hands must be coated with luminous material which glows for at least three hours.

The DIN 8330 also requires pilot's watches and their functions to work properly between -15 °C and +55 °C (5 to 131 °F). They have to pass an impact test by surviving a drop from a 1-meter height onto a hardwood floor. They are also tested for waterproofness according to DIN 8310. The watches undergo further tests for precision, strap fittings, and magnetic field resistance, among other things. At the end of the tests, the watch must still function properly and have no signs of external damage.