Speedtimer Solar Chronograph Dial The dial is applied sandblast finishing which ensure high levels of readability and legibility crucial to a Prospex sports watch. SPECIFICATIONS Movement Caliber Number V192 Movement Type Solar Precision ±15 seconds per month Power reserve Operating for approx. 6 months (when fully charged) Functions Overcharge prevention function 24-hour hand Equipped with small seconds hand Chronograph up to 60 minutes in 1/5 second increments Power reserve indicator Date display Case/Band Case Material Stainless steel Case Size Thickness:13.3mmDiameter:39.0mmLug-to-lug:45.5mm Crystal Curved sapphire crystal Crystal Coating Anti-reflective coating on inner surface LumiBrite Lumibrite on hands and index(es) Clasp Three-fold clasp with push button release Bracelet Length 205.0 Distance between lugs 20 Other Details Water Resistance 10 bar Magnetic Resistance 4,800 A/m Weight 165.0 Features Tachymeter function Screw case back