Time to increase the complexity again, this time adding a mechanical alarm mechanism. The Bell-Matic watches were only made between 1966-78, this one being an example from 1970. They were available in 17, 21 and 27 jewel variations, this one being the most common 17 jewel version. The 27 jewel version is slightly more rare and the 21 jewel version is seldom seen. I’m planning to do a comparison of the different jewel positions in a future post. (Edit: That post here.)
(Click pictures to enlarge)
It arrived in reasonable cosmetic condition but not running as the hairspring was damaged… another hidden challenge!
In terms of technicality, this movement has its fair share, it’s certainly more complicated than the chronograph movement I tackled last month. Check out the keyless works… very well designed.
So after a full service and re-rounding the hairspring, I relumed the hands and refinished the case, here’s the results…
As you may have spotted, the lacquer on the minute ring has discoloured over the years. I could probably use some kind of solvent to remove it but at the risk of also removing the minute markers. I decided to leave it for the time being as it isn’t really noticeable in daily wear.
I really enjoyed repairing this one and I’ll certainly be on the look out for more. As they are quite collectible these days, many of the ones on eBay are just cobbled together for profit, so you have to be careful.
Rich.
