Seiko Prospex Navigator Timer SPB411J1

Specifications: Movement Caliber Number 6R54 Movement Type Automatic with manual winding Precision +25 to -15 seconds per day Power reserve Approx. 72 hours(3 days) Jewels 24 Functions Case/Band Case Size Thickness:12.6mm Diameter:38.5mm Lug-to-lug:45.2mm Crystal Box shaped sapphire crystal Crystal Coating Anti-reflective coating on inner surface LumiBrite LumiBrite on hands, index(es) and bezel Distance between lugs 19mm Other Details Water Resistance 10 bar Magnetic Resistance 4,800 A/m Weight 131.0g Features * In an actual product, the case back direction might be different from the photograph.