Caliber V192 Solar Accuracy ±15 seconds per month Power Reserve/Battery Life Operating for approx. 6 months (when fully charged) Stainless steel case materials with lumibrite on hands and indexs Curved sapphire crystal Diameter: 39mm, Thickness: 13.3mm, Length: 45.5mm Weight: 161.0g Water resistance: 10 bar Three-fold clasp with push button Screw case back Tachymeter function 24-hour hand Chronograph up to 60 minutes in 1/5 second increments Date display Display function of resuming electric power generation Equipped with small seconds hand Overcharge prevention function