Movement: Miyota Japanese quartz 6 hand chronograph; Date and Hour: Date and a 9-hour crown and pusher placement; Dial: A concave dial ring surrounds the dial and includes bold printed indices, a printed seconds track; Further Dial CD textured subdials and custom moulded hands with luminous fill; Band: 25mm custom solid stainless steel or handmade acetate 3-link bracelet; Band Fastening: Stainless steel double locking clasp with micro adjust; Case Width: 51mm custom solid stainless steel; Case Solid stainless steel or handmade acetate unidirectional rotating bezel with countdown timer; Further Case Hardened mineral crystal, screw down crown and pushers; Caseback: Stainless steel screw down caseback and screw pin lugs; Chromacoat: Some of the 51-30 Chrono models are treated with a special coating; The Chromacoat coating wears to perfection as the watch ages; 300 Metre/ 30 ATM Water Resistance: Suitable for swimming, surfing and snorkelling; :: Men > Watches Size: one size.