Detailed specifications:
Model Description:  SM8021
Movement: ST3620 Automatic Mechanical Movement
Lume: Super luminous
Case: 43.20mm (Without Crown)
Crown:5.1*6.5mm
Lug to lug: 52mm
Case Type: Round
Case Material:316L Stainless Steel
Case Colour: Sand blasted & Shiny
Height: 10.3mm
Diameter:43.20mm
Leather Band
Dial Color: Black/Yellow
Lug spacing:22mm
Colour: Super Luminous
Glass: Mineral Crystal
Gender: Men & Women
Water Resistant:10ATM
Crown: 6.80mm screwed
Waterproof level: 100 meters waterproof