Hollow mechanical watch

main feature:
-100% brand new, with label and high quality;
-3 ATM / 30 M waterproof (not for showers, swimming and diving);
- high quality zinc alloy cover;
- high quality soft leather strap;
Specifications (approximate):
- Case diameter: 4.5 cm
- Case thickness: 1.5 cm
- Bandwidth: 2.4 cm
- Total length: 22 cm