Braun Solar Watch Men's & Women's & Unisex Black Leather Strap × Silver Case BN0301BKSLBKG

---------------------------------------------------------------------- Arm circumference: approx. 14-19cm Waterproof: 5ATM Charging guideline - Direct sunlight (100,000 lux) Full charge: 5 hours Normal operation: 15 minutes One day's charge: 2 minutes - Cloudy outdoors (10,000 lux) Full charge: 20 hours Normal operation: 1.5 hours One day's charge: 8 minutes ・When charging with a 30W light bulb approximately 20cm away (3,000 lux) Full charge: 60 hours Normal operation: 4 hours One day's charge: 25 minutes ・Office (700 lux) Fully charged: - Normal operation: 35 hours One day's charge: 100 minutes *When fully charged, the operating period is approximately 4 months. Accessories: Official warranty card