1. Mirror material: hardened glass, buckle material: stainless steel, strap material: bracelet, case material: alloy 2. Display type: pointer 3. Movement type: quartz 4. Movement model: PC21 5. Clasp style: jewelry clasp 6. Crown type: spiral crown 7. Waterproof performance: life waterproof 30 meters 8. IP vacuum electroplating case, durable gloss 9. High-strength mineral glass mirror surface, wear-resistant and scratch-resistant 10. Unit weight: 0.05kg 11. Thickness: 8mm, dial diameter: 26mm, strap width: 13mm, strap length: 190mm