Breitling Transocean Day & Date Watch - 43mm Red Gold Case - Black Dial - Black Croco Strap - R4531012/BB70/744P/R20D.143. 00 mm 18K red gold case, screwed in back, non screw locked crown with two gaskets, convex sapphire crystal with glareproof treatment on both sides, black dial, selfwinding mechanical Breitling 45 movement with date at 3 o'clock and day at 12 o'clock, approximately 42 hours of power reserve, black croco strap with deployant buckle. Water resistant to 100 m (330 ft).