Breitling - Transocean Chronograph 1461 - A19310 The Transocean 1461 gets its name because the semi-perpetual calendar on this watch will only need a single correction once in the 4-year cycle of Leap-Years. On the 1461st day, the watch will require that the calendar be corrected. Reference No: A1931012/G750 Case Material: Steel Diameter: 43 mm Dial: Mercury Silver Glass: Scratch-resistant sapphire crystal Strap: Leather Strap Length: 20 cm (Including case) Clasp: Buckle Case Back: Solid Condition: Worn & Very good condition Movement: Automatic Functions: Chronograph, Moonpase, Month, Date, Day, Hour, Minute, Second, and Chronometer Extras: Travel box (Aftermarket) Sent by DHL Express, FedEx, or UPS (it’s so safe and fast) *Optionally, shipping from Europe is available with an additional payment. #WatchResources