E79363101B1E1
Professional Aerospace Evo
Lug width: 22 mm
Source: MakerCase size: 43 mmBlack dialCase material: Titanium
- Attachment
- classic lugs
- Style
- pilot
- Status
- Listed by the maker
The strap size depends on the reference. Yours is engraved on the case back or between the lugs at 6 o'clock.
22 or 24 mm
Verification: Listed by the maker
43 to 46 mm cases
Official page: Breitling
Report an errorIndicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.

The story · Since 1985
40,000
approximate number of original Emergency watches purchased
Worn by
Bertrand Piccard, Brian Jones, Quentin Smith, Colin Prescot, Andy Elson
The Aerospace of 1985 combined analog hands with two LCD screens in a titanium case, and every function, from the 1/100 second chronograph to the alarm, ran from the crown. The first reference, 80360, measured 40 mm and still read Navitimer on the dial. In 1994 ref. 56062, known as the Aerospace II, enlarged the lower screen.
In 1995 Breitling announced the Emergency, a 43 mm titanium watch with a transmitter on the 121.5 MHz air distress frequency, developed with Dassault Electronique. Development took nearly a decade and $7 million, and the watch could not be sold until Swiss regulators approved it in May 1996. US approval came in 2000.
The Aerospace moved to the SuperQuartz caliber 75 chronometer in 2001, then grew to 42 mm with a backlit caliber 79 as the Aerospace Avantage in 2005. Meanwhile Emergency owners kept activating their beacons: two British pilots after a helicopter crash near Antarctica in 2003, a stranded hunter in Alaska in 2012.
After Cospas-Sarsat stopped satellite monitoring of 121.5 MHz in 2009, Breitling spent five years on the Emergency II, shown at Baselworld 2013. It added the 406 MHz satellite frequency and a rechargeable battery, in a 51 mm titanium case. The same year the Aerospace Evo took the case to 43 mm.
Wore a Breitling Emergency during the Breitling Orbiter 3 flight, the first nonstop round-the-world balloon flight, from 1 to 20 March 1999. The beacon was his fallback if the balloon came down.
Piccard's co-pilot on Breitling Orbiter 3 also wore an Emergency, an orange-dialed one according to Fratello.
The British helicopter pilot ditched in the Drake Passage in January 2003 during a pole-to-pole attempt and deployed his Emergency's antenna; a rescue plane located the crew nine and a half hours later.
The British balloonist told The Independent he was given a blue Emergency by Breitling after his round-the-world balloon attempt and wore it as a last-resort safety device.
Prescot's ballooning partner, who according to Prescot wore his orange Emergency all the time.
The three-time IRONMAN world champion rode the TORTOUR 500 ultracycling race in July 2024 wearing the Endurance Pro, according to Breitling.
The Grand Tour winner rode with Breitling's squad at the 2024 TORTOUR 500, where the team wore the Endurance Pro 44 and 38.
2012. Alaskan hunter Mark Spencer, hypothermic after more than 48 hours alone, was found by helicopter after activating his Emergency; his separate beacon put him four miles off.
2003. Quentin Smith and Steve Brooks were found in a raft in the Drake Passage after activating an Emergency on 121.5 MHz; Smith said no one had survived a ditching there before.
1999. Breitling Orbiter 3 completed the first nonstop balloon flight around the world on 20 March 1999, its two pilots wearing Emergency watches. The capsule went to the Smithsonian's National Air and Space Museum in 2000.
1997. An Emergency saved the 13 crew of the Mata-Rangi, a reed boat blown off course by a storm after sailing from Easter Island toward Australia.
1995. In December 1995 the Emergency proved itself in a Hong Kong search-and-rescue exercise involving the RAF, the Royal Navy, the US Air Force, Navy and Coast Guard.
A 38 mm version on caliber 83, raced by Breitling's cycling squad at the TORTOUR 500 in July 2024 as newly launched.
18 mm lug width, strap 18/16 mm, 16 mm Breitlight tang buckle.
A 44 mm by 12.5 mm Breitlight case on the COSC SuperQuartz caliber 82, launched in five colours on Diver Pro rubber straps with a Breitlight double-pin buckle.
22 mm lug width and about 52 mm lug to lug; current straps taper 22/18 mm to an 18 mm buckle.
The first wristwatch with a dual-frequency personal locator beacon (121.5 and 406 MHz), with a rechargeable beacon battery and a charger-tester.
51 mm titanium case (the original was 43 mm), on a Diver Pro III rubber strap or a titanium Professional bracelet.
The Aerospace enlarged to 43 mm with a screwed caseback, still on caliber 79.
Current 43 mm Aerospace references list a 22 mm lug width and a 22/20 mm strap.
Caliber 79 added a backlight; the larger battery brought a screwed caseback, and the rider tabs were integrated into the bezel.
Case grew to 42 mm.
The first wristwatch with a built-in emergency microtransmitter, on 121.5 MHz, with a main antenna unscrewed from the lower right of the case.
43 mm titanium case.
Nicknamed the Aerospace II: a larger lower LCD window for legibility and a bezel mixing numerals and bars.
The first Aerospace, a 40 mm titanium analog-digital chronograph on the ETA 988.332, water resistant to 100 m, with Navitimer on the dial and caseback.
40 mm case.
Breitling Professional references in our database. Each card says where its width comes from: listed by the maker (linked to the maker's page in the details), two independent sources agree, or listed in our database and not yet verified by us.
Professional Aerospace Evo
Lug width: 22 mm
Source: MakerCase size: 43 mmBlack dialCase material: Titanium
Professional Aerospace Evo
Lug width: 22 mm
Source: MakerCase size: 43 mmBlue dialCase material: Titanium
Professional Aerospace Evo
Lug width: 22 mm
Source: MakerCase size: 43 mmAnthracite dialCase material: Titanium
Professional Aerospace Evo
Lug width: 22 mm
Source: MakerCase size: 43 mmBlack dialCase material: DLC-coated titanium
Professional Aerospace Queen Elizabeth Ii Aircraft Carrier Edition
Lug width: 22 mm
Source: MakerCase size: 43 mmBlack dialCase material: Titanium
Professional Aerospace Red Arrows
Lug width: 22 mm
Source: MakerCase size: 43 mmBlue dialCase material: Titanium
Professional Bentley Gmt B04 S Carbon Body
Lug width: 30 mm
Source: MakerProfessional Chronospace Military
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: DLC-coated stainless steel
Professional Cockpit B50
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: Titanium
Professional Cockpit B50
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: Titanium
Professional Cockpit B50 Orbiter
Lug width: 24 mm
Source: MakerCase size: 46 mmOrange dialCase material: DLC-coated titanium
Professional Cockpit B50
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: DLC-coated titanium
Professional Cockpit B50
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: DLC-coated titanium
Professional Emergency
Lug width: 26 mm
Source: MakerCase size: 51 mm
Professional Emergency Ii 緊急求救腕錶星宇航空特別版
Lug width: 26 mm
Source: MakerProfessional Emergency
Lug width: 26 mm
Source: MakerCase size: 51 mm
Professional Endurance Pro 38
Lug width: 18 mm
Source: MakerCase size: 38 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 38
Lug width: 18 mm
Source: MakerCase size: 38 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 38
Lug width: 18 mm
Source: MakerCase size: 38 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 38
Lug width: 18 mm
Source: MakerCase size: 38 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 38
Lug width: 18 mm
Source: MakerCase size: 38 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 Carolina Hurricanes
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 Ibiza Island
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 Ironman® 70.3 World Championship 2024
Lug width: 22 mm
Source: MakerCase size: 44 mmAnthracite dialCase material: Breitlight®
Professional Endurance Pro 44 Ironman® 70.3 World Championship 2025
Lug width: 22 mm
Source: MakerCase size: 44 mmBlue dialCase material: Breitlight®
Professional Endurance Pro 44 Ironman® Finisher
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 Ironman® World Championship 2024
Lug width: 22 mm
Source: MakerCase size: 44 mmAnthracite dialCase material: Titanium
Professional Endurance Pro 44 Ironman®
Lug width: 22 mm
Source: MakerCase size: 44 mmRed dialCase material: Breitlight®
Professional Endurance Pro 44 Nfl Arizona Cardinals Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Atlanta Falcons Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Baltimore Ravens Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Buffalo Bills Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Carolina Panthers Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Chicago Bears Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Cincinnati Bengals Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Cleveland Browns Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Dallas Cowboys Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Denver Broncos Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Detroit Lions Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Green Bay Packers Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Houston Texans Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Indianapolis Colts Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Jacksonville Jaguars Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Kansas City Chiefs Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Las Vegas Raiders Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Los Angeles Chargers Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Los Angeles Rams Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Miami Dolphins Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Minnesota Vikings Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl New England Patriots Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl New Orleans Saints Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl New York Giants Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl New York Jets Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Philadelphia Eagles Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Pittsburgh Steelers Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl San Francisco 49ers Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Seattle Seahawks Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Tampa Bay Buccaneers Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Tennessee Titans Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Nfl Washington Commanders Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Titanium
Professional Endurance Pro 44 Premiers De Cordée
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 Princeton® University Edition
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 Stanford® University
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 The University Of Alabama®
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 United States Naval Academy™
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44 University Of Michigan™
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro 44
Lug width: 22 mm
Source: MakerCase size: 44 mmBlue dialCase material: Breitlight®
Professional Endurance Pro 44
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional Endurance Pro Ironman® World Championship 2022
Lug width: 22 mm
Source: MakerCase size: 44 mmYellow dialCase material: Titanium
Professional Endurance Pro Ironman® World Championship 2025
Lug width: 22 mm
Source: MakerCase size: 44 mmAnthracite dialCase material: Titanium
Professional Exospace B55
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: Titanium
Professional Exospace B55
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: Titanium
Professional Exospace B55
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: DLC-coated titanium
Professional Exospace B55 Yachting
Lug width: 24 mm
Source: MakerCase size: 46 mmBlack dialCase material: Titanium
Professional エンデュランス プロ 44 広島東洋カープ カープ坊や リミテッド
Lug width: 22 mm
Source: MakerCase size: 44 mmBlack dialCase material: Breitlight®
Professional エンデュランス プロ 44 広島東洋カープ カープ女の子 リミテッド
Lug width: 22 mm
Source: MakerNo reference matches.
Breitling Professional references use 18 mm or 22 mm or 24 mm depending on the reference and case size, so check yours in the list below. The most common is 22 mm (61 of 80 references with a known width). The Breitling Professional ref. E79363101B1E1, E79363101C1E1 and 59 more take 22 mm (listed by the maker). The Breitling Professional ref. M78367101B1W1, EB5010221B1E1 and 8 more take 24 mm (listed by the maker).
No. 5 different lug widths appear across the line, often by case size or generation. Check the reference engraved on the case back or between the lugs.
22 mm. Breitling's current straps for it taper to an 18 mm or 20 mm buckle depending on the reference (22/18 mm on the standard models, 22/20 mm on some IRONMAN editions).
18 mm between the lugs, with an 18/16 mm rubber strap and a 16 mm Breitlight tang buckle.
Yes. Breitling says the rubber strap can be replaced with other compatible Breitling straps, and at launch it sold matching Outerknown ECONYL NATO straps separately.
Current 43 mm Aerospace references list 22 mm between the lugs, with a strap or bracelet tapering 22/20 mm.
Its 46 mm case has 24 mm between the lugs; the polyamide strap tapers from 24 to 20 mm at the buckle.
The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.
Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.