Caliber No. V192 Power Source: Solar Accuracy: Average monthly deviation ±15 seconds Power Reserve: Approximately 6 months on full charge Overcharge Prevention Function 24-Hour Hand Small Seconds Hand Stopwatch Function (1/5-second measurement, 60-minute counter) Power Reserve Indicator Calendar (Date) Function Water Resistance: 10 ATM (100 meters) Magnetic Resistance Weight: 167.0g Tachymeter scale Screw-down case back Case material: Stainless steel Case size: Thickness: 13.3mm, Width: 39.0mm, Height: 45.5mm Glass material: Curved sapphire crystal Glass coating: Anti-reflective coating on inner surface Lumibrite® (hands and indexes) Clasp: One-push triple folding clasp Wristband length (maximum): 205.0mm