Elgin Model 3 Grade 304 The Pocket Watch Database’s technical description of the movement based on its serial number Movement size Full movement Balance with a focus on the impulse pin Balance spring with Breguet overcoil Balance removed Crown wheel with snailing Click and its spring Barrel bridge removed Engraving on the gear train bridge Mainspring barrel Centre wheel Gear train bridge removed Third wheel Fourth wheel Escape wheel Swiss lever Main plate Dial Movement with dial removed Complete dial side Hour wheel Cannon pinion Setting mechanism still visible Set lever Other lever Dial side almost empty Winding pinion and clutch