PROSPEX SPB323

Seiko Prospex challenges every limit, with a collection of timepieces for sports lovers and adventure seekers whether in the water, in the sky or on land. Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative technology has changed global standards. We are constantly striving to bring ever greater reliability and safety to both professional and recreational divers. MOVEMENT Caliber: 6R35 Movement Type: Automatic with manual winding Precision: +25 to -15 seconds per day Power Reserve: Approx. 70 hours Jewels: 24 Functions: Stop seconds hand function Date display    CASE/BAND Material: Stainless steel  Size: Thickness: 13.4mm, Diameter: 45.0mm, Lug-to-lug:52.6mm Crystal: Sapphire crystal Crystal Coating: Anti-reflective coating on inner surface LumiBrite: LumiBrite on hands, index(es) and bezel Clasp: Three-fold clasp with secure lock , push button release with extender Distance Between lugs: 20mm   OTHER DETAILS Water Resistance: 200m / 660ft diver's Weight: 190.0g Features:  Unidirectional rotating bezel Screw-down crown Three-fold clasp with secure lock Screw case back     REF: SPB323