On offer for sale is A Very Rare and Early Vintage PROT Eterna Pin Set Silver Trench Watch The watch is in good working condition but is untested. The crystal on the bezel is original and has scratches. The back case has all Swiss sterling silver standard hallmarks and is broken off its hinge. On sale as depicted in the photographs. Dimensions: 30 mm; lugs: 11 mm Dispatched ebay Simple Delivery