Breguet Type XXI Trasatlantique 3817ST Review

Case in steel with a delicately fluted caseband. Sapphire-crystal caseback. 42mm diameter. Bidirectional rotating bezel. Rounded lugs. Screw-locked crown. Water-resistant to 10 bar (100m). Dial slate grey, signed Breguet. Hours chapter with luminescent Arabic numerals. Day/night indicator at 3 o’clock. 12-hour totalizer and date at 6 o’clock. Small seconds at 9 o’clock. Central minute totalizer. Luminescent hands and dots. Self-winding chronograph movement, with ‘flyback’ function. Numbered and signed Breguet. Cal. 584Q/2. 131/2 lignes, 26 jewels. 48 hours power reserve. Inverted in-line Swiss lever escapement with silicon pallets. Silicon balance-spring. Balance frequency 4Hz. Adjusted in 6 positions. Strap in calfskin leather.


  • Country of Manufacture: Switzerland
  • Bracelet Strap: Strap in calfskin leather.
  • Case: Case in steel with a delicately fluted caseband.
  • Case Back: Sapphire-crystal caseback.
  • Case Length: 42mm
  • Case Width: 42mm
  • Crystal: Sapphire Crystal
  • Dial Color: Dial slate grey.
  • Functions: Hours, Minutes, Seconds, Chronograph, Rotating Bezel and Date
  • Gender: Men’s
  • Hands: Luminous
  • Dial Markers: Arabic Numerals
  • Warranty: Full Factory Warranty (We are Authorized Retailers)
  • Movement: Self-winding chronograph movement
  • Water Resistance: Water-resistant to 10 bar (100m).
  • Get this watch here FREE winder with purchase.