Model Number 1510 LSMQ 03 E - 28MM Movement Swiss Movement/Quartz Water Resistant 50 Meters / 5ATM Case Diameter 28mm Case & Crown Material 316L Stainless steel Plating IPB Plating Band Stainless steel CaseBack Stainless steel Glass Hardlex Mineral Crystal Dial Black HMSD (Hour.Minute.Second.Date) Buckle Butterfly Clasp