Casio Beside BMS 500D 1A Mens Chronograph Sapphire Crystal Stainless Steel Black Dial Quartz Watch COA:SIN The Black strap is a XWA4330 The Black strap is a practical option for regular strap replacement or personalising an existing timepiece From the legendary house of Azzaro Specification Detail Model Number BMS 500D 1A Brand Casio Beside Gender Men's Movement Type Quartz Case Shape Round Case Material Stainless Steel Caseback Type Screw lock Crystal Sapphire Dial Color Black Bracelet Material Stainless Steel Bracelet Type Five link metal bracelet Clasp Type One touch three fold clasp Estimated Weight Approximately 140g Lugs Count 4 Water Resistance 50 meters (5 ATM) Chronograph Range 59 minutes 59 seconds Additional Functions 24 hour indicator and 1st 2nd place timing