The Rosary is a fascinating men's timepiece that features a skeleton automatic movement protected by a solid stainless steel case. The oversized Arabic numerals are all a single hand-applied piece. It is adorned by a genuine leather strap. Case: Stainless steel Caseback: Stainless steel, screw-down Bezel: Stainless steel Dial: Skeleton Hands: Black with luminous fill Markers: Arabic numerals Strap: Black, leather Clasp: Tang buckle Crystal: Krysterna Crown: Push/pull Movement: Automatic Water resistance: 5 ATM/50 meters/165 feet Case measurements: 45mm wide x 45mm long x 12.5mm thick Strap measurements: 24mm wide x 9 inches long Box measurements: 3 inches wide x 3 inches high x 12 inches long Model: MW912S01O All measurements are approximate and may vary slightly from the listed dimensions. Men's watch bands can be sized to fit 7.5-inch to 8.5-inch wrists. Click here to view our Watch Sizing Guide . Automatic movement winds with the movement of your arm. It is recommended that you wind the watch every two weeks.