Mens Water Resistant Automatic Mechanical Watch

Mirror Table: Mineral Glass Mirror
Clins: Double Butterfly Buckle
Strap: Stainless Steel
Case Diameter: 40 mmCase
Thickness: 12.4mm
Bracelet Width: 20mm

Movement: movement Automatic auto-wind
Housing Material: Stainless Steel
Band Material: Leather / Stainless Steel
Type of Clasp: Buckle Pin / Buckle Safely Clasp
Function: 5ATM Waterproof
Observation window: Hardlex

First, the basic knowledge of mechanical watches:
1. Fully automatic winding mechanical watch: It is automatically wound by the swing of the arm, so it must be worn for more than 8 hours every day to ensure accurate timing. It is also possible to supplement the energy by hand-winding by rotating the "turned" clockwise about 15 turns (without pulling out).
      2, manual winding mechanical watch: need to manually wind up ("put" does not pull out, clockwise rotation) watch can be normal to walk, usually "turn" can be rotated 15 times (such as too much may damage the watch The chain)