The holy grail of electric clock movements--The Hansen Synchron C4 bottom-set clock movement Model 33-232 (NOS), complete with the 43-RA 110v AC motor, knurled mounting nut and minute hand knurled nut. Takes all clock hands designed to fit the C4 movement. Sweep second hand shaft has the correct 2-56 thread. Original cardboard packing sleeve only removed to take photos of the movement.

I understand that the knurled mounting nut can be removed since it is pressure fitted to the outer non-moving shaft but would caution anyone to take care while doing removal. Once removed, the C4 can be used for the older 4-hole mounting system used by vintage clock manufacturers such as Glo-Dial, ENCC, Swihart, Lackner and NPI. Don't let the brass mottling distract you. This is normal for the all-brass movement as they age. It will not affect the operation in any way.

If you are into vintage neon clocks, you know that operational C4 bottom-set movements are hard to come by. I have set a starting bid of $99. 

Read my seller rating and bid with confidence. This is the real deal.

All questions gladly answered, because your time and interest are important to me.

Here are the dimensional specs:

Product Type

C Mount

Center Assembly Overall Length

1.014 in

Center Assembly Hub Length

0.325 in

Center Assembly Hub Diameter

0.312 in

Hour Tube Length

0.358 in

Hour Tube Large Diameter of Taper

0.201 in

Hour Tube Small Diameter of Taper

0.197 in

Hour Tube Taper Length

0.160 in

Minute Tube Length

0.196 in

Minute Tube Diameter

0.172 in

Minute Tube Thread

10-32

Minute Tube Flat Length

0.130 in

Minute Tube Flat Thickness

0.108 in

Second Shaft Length

0.135 in

Second Shaft Thread

2-56

Second Shaft Thread Length

0.090 in

Center Mounting Available

Yes