About AM7081M
Movement: Japan Citizen Miyota 8205
Winding method: Self winding and Hand winding
Surface lens: Sapphire Glass
Exhibition Back Cover Sapphire Glass
Waterproof: (20ATM)
Case material :Stainless Steel
Case shape: Round
Case diameter: 42mm
Case thickness: 14mm
Strap width: 20mm
Wearable length: 175mm
Strap material: Silicone
Clasp: Pin Buckle
Weight: 104g

Features:

1. Day Date Calendar Watch, Sapphire Glass, Super Luminous

2.Super luminous hour marker

3.Silicone band deeply waterproof

4.Surface lens and Exhibition Back cover material all are Sapphire Glass ,Scratch Resistant

5.Case Materail: 100% solid Stainless Steel

6.200M Water proof (splashing, rain, washing, shower, swimming, diving)

7.Timing Rotating Inner Ring

8. Movement: Japan Citizen Miyota 8205

9.  Jewels:21pcs
    Frequency Running time: (more than) 42 hours
    Travel time accuracy (seconds/day): -20～+40 seconds