Total Production: Approx. 5900 Watches Including Approx. 2600 Masonic Watches Years S/N 1920 - 1925 Dudley Watch Co. 500 - 1900 1925 - 1935 PW Baker Co. 2001 - 4800 1935 - 1976 XL Watch Co, NY 4801 - 6500 Source: pocketwatchrepair.com
