Seiko Prospex Sea 1965 Heritage Diver's 40 MM Automatic Watch SPB451J1 FREDERIQUE CONSTANT monocrystalline silicon balance-spring

monocrystalline silicon balance-spring

Band: Solid Band/Stainless Steel Band/One-touch 3-fold Clasp

an alloy with a pitting resistance 1

it provides the convenience of a battery-powered timepiece with minimal maintenance

:     9F62 Instructions

Seiko Prospex Sea 1965 Heritage Diver's 40 MM Automatic Watch SPB451J1 FREDERIQUE CONSTANT monocrystalline silicon balance-springCaliber Number: 6R55 Movement Type: Automatic with manual winding Precision: +25 to 15 seconds per day Power reserve: Approx. 72 hours(3 days) Jewels: 24 Stop second hand function Case Material: Stainless steel Case Size Thickness: 13. 0mm Diameter: 40. 0mm Lug to lug: 46. 4mm Crystal: Curved sapphire crystal Crystal Coating: Anti reflective coating on inner surface LumiBrite: LumiBrite on hands, index(es) and bezel Clasp: Three fold clasp with secure