Fine mechanical watchmaking from Japan. Manual and automatic winding capabilities. 21,600 vibrations per hour. Power reserve: approximately 41 hours. 23 jewels. Green dial with pressed pattern and gloss finish Date calendar Box-shaped crystal. Screwdown see-through caseback. Case diameter: 40.5mm. Stainless steel case and bracelet Double deployment clasp with push button release Water-resistant to 5 bar, 50 meters (165 feet). Caliber 4R35. . . . . . . . . . .