Watch Specification
Model: SD1933
Movement: Japan NH35 automatic, 41 hours of energy storage. 
Case material: 316L stainless steel
Case back: 316L stainless steel
Bezel: stainleel steel bezel
Watch mirror: sapphire crystal with AR coating.
Water resistance: 200 m / 20 ATM
Luminous: Swiss BGW9 blue super luminous.
Crown: Screwdown Crown
Case back: Screwback Case
Clasp: V2 6 hole adjustment milled clasp
Watch Dimension
Case diameter:39mm ( without crown)
Case thickness: 13mm 
Lug width: 20mm 
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.