Prospex Alpinist 1959 Sport Watch Reinterpretation Manual and automatic winding capabilities 21,600 vibrations per hour Power reserve: approximately 70 hours 24 jewels Gradated green dial Date calendar LumiBrite hands and markers Curved sapphire crystal with anti-reflective coating on the inner surface Screwdown crown and see-through caseback Case diameter: 38.0mm Stainless steel case and bracelet Tri-fold push button release clasp Water-resistant to 20 bar, 200 meters (660 feet) Caliber 6R35
