Movement: Mechanical movement Movement Model: F7M62 Accuracy: +15 to -5 seconds per day Power Reserve (Mechanical): Over 50 hours Automatic Winding: Yes Manual Winding: Yes Dial Color: White Bezel Material: Stainless Steel (SUS316) Case Material: Stainless Steel (SUS316) Case Back Material: Stainless Steel (SUS316) Case Dimensions (Width): 41.0 mm Case Dimensions (Height): 49.0 mm Case Dimensions (Thickness): 13.8 mm Case Back: Transparent Case Back Crystal Material: Double-domed Sapphire Crystal (SAR Coating) Case Back Material: Sapphire Crystal Strap Material: Alligator Leather Strap Color: Navy Blue Strap Width: 20 mm Clasp Type: Push-button Triple-fold Clasp Wrist Circumference: 150 mm to 190 mm Water Resistance: Enhanced Daily Water Resistance (50M) Antimagnetic Performance JIS Class 1 (4800 A/m) (or higher) Weight 85 grams Number of gemstones 22 Date display Yes Power reserve indicator Yes Screw-down case back Yes Limited Edition Limited to 100 pieces in Japan Country of Origin Japan Release Date September 2021