6CAMC hand size

Submitted by xyzzy on December 21, 2020 - 7:22pm

What would be the hand hole diameter for a 6CAMC movement?

I tried to measure the hands myself.  I get about 1.0 / .63 for the hour and minute.  The second looked bigger when next to a replacement hand that should be a 0.20 mm hole.

I checked the Ranfft Watches database, and they don't have this movement, but all the other Bulova 6 movements with center seconds, 6CAC, 6BKC, etc.. are 1.10 / 0.60 / 0.18.

But I also found this picture of an old hand assortment, and a 6BKC is listed as 1.09 / 0.65 / 0.28.hands

Posted December 21, 2020 - 9:33pm

In reply to by mybulova_admin

The 6CMAC appears to be from around 1964-1968, so it's not in that catalog.  But it does repeat the size of 1.09/0.65/0.28 for the 6BKC.

It appears sourcing generic hands might be harder than I thought.  Being a ladies watch, the hands are short, about 5.1 mm and 3.5 mm.  Best I can find are minute 5.0 L / 1.10 Ø and hour 3.0 L / 0.60 Ø.  Hour hands with 0.65 mm holes are all much too long.