junichi Collection / Serial #1054439 E. Howard Watch Co. (Keystone) Grade Series 0 Serial #1054439 Movement Image Dial Image Manufacturer E. Howard Watch Co. (Keystone) Grade Series 0 Serial Number 1054439 Size 16s Model 1907 Jewel Count 23 Setting Pendant Finish Nickel Dial Material Enamel Dial Type Doublesunk Movement Markings E. Howard Watch Co. Boston U.S.A. Adjusted 23 Jewels Pat'd '07