Total product weight approx. Case diameter: 42 mm. Water resistance: 30 bar (300 metres / 1000 feet). Night illuminating hour batons and hour/minute hands. Self-winding GMT movement with 24 hour GMT hand, chronometer, rhodium-plated finish. Estimated power reserve: 44 hours. Movement Type: Self winding (rotor/automatic). Bracelet (wrist) size: with the extra extension buckle opened (see photos), it can fit 19.5 cm wrist size (7.8 inches), while when the extension buckle is locked it can fit 15.5 cm wrist (6.2 inches). Keep in mind, the watch comes though with 1 extra link too (I disassembled to fit my hand). The watch comes with an original OMEGA wooden (grand) box, Omega catalog, card holder, and elegant cloth/velvet watch keeper/pouch (see photos). VERY IMPORTANT NOTE: if you are a returning customer, please let me know ahead of time so that I send you a discount coupon, as an appreciation gesture for our loyal frequent customers???