AN OPEN FACE 9K GOLD POCKET WATCH Date: Circa 1919 Movement: Signed by Rotherham & Sons, gilt finish bridge plate, 15 friction/burnished Jewels, stem set, Bosley regulator invented in 1755 by Joseph Bosley, No. 226XXX Dial: White porcelain, black Roman numerals, black outer minute division, blued spade hands, subsidiary dial for seconds at the 6 o'clock position Case: Open face, polished 9K gold, snap on back 9K gold, snap on cover dust 9K gold, No. 35XXX Size: 50.6mm Weight: Approx. 97.6g (50.6mm.)