1. Case material: aluminum alloy
2. Bottom cover material: stainless steel
3. Strap material: silicone
4. Strap buckle: stainless steel
5. Strap width: 22mm
6. Maximum wrist circumference: 24cm
7. Battery model: CR2016
8. Waterproof level: 50 meters
9. Dual pointer and digital display: physical pointer automatically synchronizes digital time
10. The minute and hour hands automatically rotate to indicate function icons
11. With EL backlight, luminous dial + luminous hands, clear countdown at night
12. With air pressure measurement, 7-level air pressure indication, altitude, temperature measurement, alarm clock reminder and other functions