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 exhibition screw-back case deliver 200 metres of water resistance; the unidirectional timing bezel with bi-colour aluminium insert completes a serious dive specification SUNRAY BLUE DIAL & SAPPHIRE CRYSTAL: Anti-reflective sapphire crystal protects a sunray blue-to-black gradient dial; bold luminous hands and hour markers ensure clear readability above and below the surface FOLD-OVER PUSH-BUTTON CLASP: The silver-tone stainless steel H-link bracelet closes with a fold-over push-button clasp, delivering secure, refined wear - as polished in the boardroom as it is in open water MARINE STAR SERIES B: An uncompromising redesign of one of Bulova's most celebrated sport models; exhibition caseback reveals the automatic movement for a compelling display of mechanical watchmaking craftsmanship