This one is Andy’s from California, and in need of a service. The watch is probably from the 60s, when alarm watches were the big craze. I still have two alarm watches, and I find them useful even in the days of smartphones. It’s just so much cooler to have a watch go off than a phone!
What I like about it is the little opening at 6 o’clock for the alarm time, rather than having the usual hand indicating when the alarm will go off.
GP branded the AS 1475 movement, and you can see that a previous watchmaker has engraved “AS1475” into the wheel bridge, so he would known what parts to get next time around 😉
Not too bad, but the movement is dry, and can do with some lubrication.
There is a bit of damage at 3 o’clock, but otherwise, the dial has aged very nicely.
The central second hand is driven off the fourth wheel, which goes through the centre wheel.
On most alarm movements, the top plate has the usual movement, and the barrel and gear to drive the hammer, whereas the bottom plate carries the release mechanism.
The huge lever running across the middle releases the alarm hammer.
At 12 o’clock, you can see that one of the case screws has broken off, with the remainder stuck in the plate. Somebody has already tried in vain to get it out, as you can tell by the scratches around it.
24 hours in alum solution, and the screw is gone.
After the alum bath, the plate goes through the cleaning machine with the rest of the parts.
To clean up the thread, I run a tap through it.
As usual, a new mainspring.
As with any movement with complications, I start off by just putting the base movement back together, to make sure all is well, before starting with anything else.
With a bit of adjusting, the beat error and beat rate are where I want them to be.
Now I can put the bottom plate with the alarm mechanism back together.
The hour hand has lost almost all its luminous compound, so I will re-apply new compound to all the hands.
I put the dial and hands back on, and case the movement. With a new crystal, it’s looking rather smart again!