Seiko Prospex Sea 1965 Heritage Diver's 40 MM SE Automatic Watch SPB455J1 Swatch LumiBrite: Lumibrite on hands and

LumiBrite: Lumibrite on hands and indexes

In an actual product

Movement: Quartz

The hand-wound Caliber 9R31 delivers a 72-hour power reserve thanks to its Dual Spring Barrel mechanism in which two springs are set in parallel within one single barrel

Seiko Prospex Sea 1965 Heritage Diver's 40 MM SE Automatic Watch SPB455J1 Swatch LumiBrite: Lumibrite on hands andCaliber 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