Features:Made In JapanStainless Steel CaseLeather StrapAutomatic MovementCaliber: F6L2422 JewelsSun & Moon PhaseSapphire CrystalWhite DialAnalog DisplaySee Through Case BackButterfly Clasp50m Water ResistanceApproximate Case Diameter: 42mmApproximate Case Thickness: 14mmApproximate Lug Width: 21mmAlternate Model Numbers: RA-AS0011S, RA-AS0011S10B, RA-AS0011S30B