BT Super Chronomat 44 Stainless Steel & 18k Red Gold Ref# I19320251B1A1

BT SUPER CHRONOMAT 44 FOUR-YEAR CALENDAR Stainless Steel & 18k Red Gold – Black Dial
44 mm Stainless Steel & 18k Red Gold case. Unidirectional ratcheted rotating bezel. BT 19 calibre, 42 hrs Power reserve. 38 jewels. Stainless Steel Bracelet. Water resistance 100 m (330 ft)
TECHNICAL DATA

• Caliber: BT 19
• Movement: self-winding mechanical
• Power reserve: approx. 42 hours
• Chronograph: 1/4th second chronograph, 30-minute and 12-hour totalizers.
• Vibration: 28,800 v.p.h
• Jewel: 38 jewels
• Calendar: Day, date, month & moon-phase
• Case material: Stainless Steel & 18k Red Gold
• Caseback: Screwed in
• Water resistance: 100 m (330 ft)
• Bezel: Unidirectional ratcheted rotating bezel
• Crown: Screw-locked, two gaskets
• Crystal: Sapphire, glareproofed both sides
• Product Weight (Approx.): 228.0 g.
• Watch-head Weight (Approx.): 134.4 g.
• Diameter: 44.0 mm
• Thickness: 14.5 mm
• Height (upper lug tip to lower lug tip): 53.5 mm
• Lug width (in-between lug): 22.0 mm
• Strap material: Stainless Steel
• Strap color: Metal Bracelet
• Strap type: Straight
• Lug: 22/20 mm

The Super Chronomat comes in several colour and metal variations, from stainless steel to 18 k red gold. It either features the iconic Rouleaux bracelet or a rubber Rouleaux-inspired strap, matched with a folding clasp. The Super Chronomat 44 Four-Year Calendar is powered by the BT Calibre 19, a COSC-certified chronometer with a semi-perpetual calendar mechanism that needs adjusting just once every leap year – or every 1,461 days.