Omega Speedmaster Professional Moonwatch 42mm Sapphire 310.30.42.50.01.002 Box and Papers Brand Omega Model Speedmaster Professional Moonwatch Reference number 310.30.42.50.01.002 Movement Manual winding Case material Steel Bracelet material Steel Year of production Condition PreOwned Showcase Wear Scope of delivery Original box, original papers Gender Men's watch/Unisex Location Diamonds East Intl Boca Raton Fl. 4251 North Federal Highway 33431 (561)353-3278 Caliber Movement Manual winding Caliber/movement Power reserve Number of jewels Case material Steel Case diameter 42 mm Water resistance 5 ATM Bezel material Steel Crystal Sapphire crystal Black Dial numerals No numerals Bracelet/strap Bracelet material Steel Bracelet color Steel Clasp Fold clasp Clasp material Functions Chronog.