This an original Telechron clock timer with the attached Greyson valve. We have repair the clock portion, all dials turn freely as intended - it works beautifully and keeps great time.

MEASUREMENT: rear diameter: 3-7/8" / front overall diameter: 4-5/8" (widest point)

We have NOT REPAIRED OR INSPECTED the gas portion of this unit - we make no warranties regarding the gas portion of this item. If you intend to use the gas portion we strongly recommend you contract a vintage gas stove professional to inspect and install the unit to insure safe operation.