Ca. 31 × 49mm, silver, engine turned, enamelled, later dedication engraving from 1941, case with rare marine marking, case number 68351, Swiss patent number 125267, British patent number 265886, case inside signed Rolex, patented opening mechanism, manual winding, original dial, Art deco steel hands, engine turned, case back needs fixing. These Rolex travel watches/pocket watches are extremely rare. We are offering 3 different examples in our auction, all from the same collection. Here are 2 more of these watches that were offered at international auctions: 1. Milan 1992 (https:///go/AO3), 2. Hong Kong 2019 (https:///go/WXw).