The Breguet Type XX Aéronavale (Reference 3800ST) is a legendary military-inspired luxury watch. Introduced in 1994, it modernizes the 1950s pilot chronographs Breguet originally crafted for the French Naval Air Force (Aéronavale). 

The watch is highly regarded by collectors as a purist’s choice for its perfectly symmetrical, date-free dial layout.

• Flyback Chronograph Function: Originally vital for pilots, the flyback module allows you to reset and immediately restart the chronograph with a single press of the lower pusher, avoiding the traditional stop-reset-start sequence. 

• No-Date Dial Symmetry: Unlike its sibling, the Type XX Transatlantique (Ref. 3820), the Aéronavale drops the date window at 6 o'clock. This choice maintains historical accuracy and clean visual balance. 

• The "Big Eye" Sub-dial: The 30-minute chronograph counter at 3 o'clock features an oversized layout and unique tracking hashes, ensuring pilots could read elapsed minutes at a quick glance. 

• Breguet Coin-Edge Profiling: The side profile of the stainless steel case features the brand’s signature delicate vertical fluting (coined edge), blending elite dress-watch finishings into a rugged military tool.

• Feature	Specification
  Case Diameter	39.0 mm
  Case Thickness	14.4 mm – 14.5 mm (due to domed sapphire)
  Lug-to-Lug Distance	A compact 45.5 mm (highly wearable)
  Case Material	Highly polished Stainless Steel with coined case flanks
  Καντράν	Matte black with luminous Arabic numerals and syringe hands
  Bezel	Rotating timing bezel with a 60-minute scale
  Μηχανισμός	Breguet Caliber 582 automatic (Lemania 1350 base)
  Power Reserve	48 hours
  Complication	Flyback Chronograph ("Retour en Vol")
  Water Resistance	100 meters