BINBOND B3820 30M Waterproof Ultra-thin Quartz Luminous Starry Watch

1. Case material: metal
2. Strap material: steel/leather
3. Mirror material: tempered glass mirror
4. Watch movement: Quartz movement
5. Special functions: decoration, luminous, calendar
6. Waterproof level: 30 meters
7. Battery: 377A button battery x 1 (battery included in delivery)
8. Watch diameter: 40mm
9. Watch thickness: 9.5mm
10. Strap width: 20mm
11. Strap length: 260mm
12. Watch weight: steel: about 100 grams, leather: 70 grams