Movement: Omega 613 Width without crown: 35mm Lug width: 18mm Thickness: 10mm Lug to lug: 40mm Stunning vintage Omega Seamaster 600 manual wind watch. Case has signs of wear and age on it and the leather strap is used. Caseback has a small engraving. Crown and crystal are original Omega. Service history is unknown but the watch works well and it is running approximately +- 10 seconds per day. This reference 135.00011 is very rare and some watches with this case reference were made for the Afghan military. This watch will be shipped with tracking.