The best-selling MQ-24 is back, now made with more environmentally responsible materials. The hour, minute, and seconds hands design features simple index numbers in a lineup of different monochromatic color schemes, all polished to a slim, minimalist look and feel. The band is made with bio-based resin, a material expected to help reduce environmental impact. Case size (L× W× H) 38.8 × 34.9 × 7.8 mm Weight 20 g Case and bezel material Resin Band Bio-based resin band Water resistance Water Resistant Power supply and battery life Approx. battery life: 3 years on SR626SW Glass Resin Glass Compatible band size 145 to 205 mm Accuracy Accuracy: ±20 seconds per month Other features Regular timekeeping: Analog: 3 hands (hour, minute, second)