Seiko Prospex Sea 1965 Heritage Diver's 40 MM Automatic Watch SPB451J1 FREDERIQUE CONSTANT Butterfly clasp with push-buttons

Butterfly clasp with push-buttons

it is designed to withstand the most punishing conditions and the worst weather situations

Since 1993

echoes the silhouette of the historical timepiece

Seiko Prospex Sea 1965 Heritage Diver's 40 MM Automatic Watch SPB451J1 FREDERIQUE CONSTANT Butterfly clasp with push-buttonsCaliber 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