Waterproof Everyday life waterproof /Waterproof. Material (Glass) Sapphire Crystal glass. Material (case body) White gold/WG. Material (Band) White Gold/WG. Size (case width) 25mm. Size (case thickness) 6mm. Size (belt length) wrist circumference up to about 12-15 cm. Some errors may occur due to the actual size measurement. Depending on the country of destination, your orders typically take between a week to arrive. To Asia about 6-9 days, To Europe about 7-12 days. Weekends are not available because post office is closed. Thank you for your understanding.