Watch Specification:
Brand: Heimdallr
Movement: Hangzhou 2553A Automatic Movement
Case material: 316L stainless steel
Case back: 316L stainless steel
Bezel Insert: aluminum bezel insert
Watch mirror: Sapphire glass with AR-Coating
Strap: Stainless Steel with solid endlinks 
Water resistance: 200 m /20 ATM
Luminous: Japan SuperLuminous C3
Date: English / Japanese
Crown: Screw-Down
Case: Screw-Down Case
Watch Dimension:
Case diameter:41mm (without crown)
Case length: 46mm( lug to lug)
Case thickness: 13mm 
Lug width 22mm
Our Service
Warranty: 3 years 
Returns policy: Please check the website“Return / Exchange / Warranty Policy” 
Style: automatic watch, dive watch, luxury watch 
Package: watch, box, warranty card, user manual
Service: Support retail, wholesale. OEM/ODM. Please contact the seller if necessary.