Seiko Presage Cocktail Time Inspired by the vibrant elegance of the exciting cocktail lounges in today's Tokyo Fine mechanical watchmaking from Japan Automatic with manual winding capability 21,600 vibrations per hour Power reserve: approximately 41 hours 23 jewels Gradated blue dial with pressed pattern and gloss finish inspired by the Blue Moon cocktail Date calendar Box-shaped crystal Screwdown see-through caseback Case diameter: 40.5mm Stainless steel case Brown leather strap Tri-fold push button release clasp Water-resistant to 5 bar, 50 meters (165 feet) Caliber 4R35