Movement: H870 Width without crown: 35mm Lug width: 18mm Thickness: 10mm Lug to lug: 40mm Stunning vintage Helvetia automatic watch. Case has signs of wear and age on it and the leather strap is used. Caseback has an engraving. Service history is unknown but the watch is working well and running approximately +- 30 seconds per day. This watch will be shipped with tracking.