Bulova Men's Automatic Analogue Watch Marine Star Series B

AUTOMATIC SELF-WINDING MOVEMENT: Powered by the Bulova 8215 automatic movement with 42-hour power reserve - the oscillating weight winds itself with every movement of your wrist, no battery ever needed 200M WATER RESISTANCE: Screw-down crown and screw-back case deliver 200 metres of water resistance, making this a capable dive companion backed by a unidirectional timing bezel with bi-colour aluminium insert 41MM SAPPHIRE CRYSTAL CASE: Scratch-resistant anti-reflective sapphire crystal protects a sunray silver-to-black gradient dial; luminous hands and hour markers ensure clear readability above and below the surface EXHIBITION CASEBACK: A transparent exhibition caseback puts the automatic movement on show, revealing the intricate rotor and mechanical architecture - a conversation piece on and off the wrist MARINE STAR SERIES B: An uncompromising redesign of one of Bulova's most celebrated sport models; 41mm stainless steel case pairs with a high-performance HNBR rubber strap and buckle clasp for secure active wear