Movement: F8B65 Accuracy: +15 seconds to -5 seconds per day Power Reserve: 70 hours Case Material: SUS316L Front Crystal: Double-dome sapphire crystal (SAR coating) Back Cover: Sapphire crystal Luminous: No Strap Material: SUS316L (Standard band: horsehide leather) Band Width: 20 mm Clasp: Triple-fold push-button clasp (Standard strap: triple-fold push-button clasp) Weight: 142 grams Diameter: 46.5 mm Diameter: 39.0 mm Thickness: 10.8 mm Water Resistance: 50 meters Magnetic Resistance: JIS class 1 (4,800 A/m or more) Wrist Circumference: 140-200 mm Other Features: Manual winding, 22 jewels