OLD OMEGA GUN METAL OPEN FACE POCKET WATCH. EXCELLENT RUNNING CONDITION – RECENTLY SERVICED. DIAMETER WITHOUT CROWN 50mm. The free listing tool. The item “COLLECTABLE OLD OMEGA GUN METAL POCKET WATCH CASE” is in sale since Monday, February 27, 2017. This item is in the category “Jewelry & Watches\Watches, Parts & Accessories\Pocket Watches\Antique”. The seller is “notredameantiques” and is located in 5000. This item can be shipped worldwide.