Seth Thomas Chronometer Lever No. 5012 - Ca. 1913. The heavy 14 1/2" cast brass case has a double hinge allowing both the key locking bezel and the 12" silvered dial to open. The fine quality double spring movement has a detached 11 jewel escapement, compensating balance wheel, Breguet hairspring and cut steel pinions. The escapement is the same as used in Seth Thomas Railroad watch movements. An excellent timekeeper. The clock has both the original case key and original winging key. The clock is mounted on a custom mahognay base or can be wall hung.