It’s a rare Lemania, so it has to be Anders’ watch!
This is a single-pusher chronograph, so starting, stopping and resetting all happens with the same button.
Let’s have a peek inside…
Very odd – the case back has been turned out inside, as if to remove a logo. If you look at any Omega case back, this is where the triangle with the Omega logo sits 😉
Inside is a Lemania calibre 2221 with a hacking second, and a serial number 1317442. The movement is in great shape, but needs a service as the amplitude is a bit weak.
The luminous compound on the hands is very fragile. I would like to preserve it, and apply binder to it, but it’s no use, and the compound just disintegrates like sand.
I mix orange, green and yellow Bergeon compound to get at least somewhere close to the original.
The 2221 has a minute recorder that turns continuously, e.g. you don’t have that distinct advancing from one minute to the next. It’s driven by a little wheel off the centre wheel.
This is the little pinion that drives the minute recorder.
All the parts clean and ready. I order a new mainspring. Oddly enough, somebody had fitted an automatic mainspring… I decide on a 1.4 x 0.12 x 480, which fits nicely into the barrel.
The new mainspring fills 1/3 of the barrel as it should, and has the right height. I had to make an educated guess on the strength, and we’ll see later on the timegrapher if that was right…
The gear train and barrel in place. Note the pretty elaborate stop lever for the hacking second.The base movement is back together, and now comes the moment of truth…
The amplitude is very good, but not too high, so the mainspring is just right. The beat error of 0.7ms is very good considering it’s adjusted on the collet, so I will leave that.
I put the chronograph back together, and adjust the depthing.
The bottom plate is quite simple as there is no hour recorder.
Now I can put on the dial and hands. You can see here that the chronograph has been running for 43 seconds, and the minute recorder shows almost a minute, as it’s running continuously.
The case back gets a new gasket.
A great watch. The case, dial, hands and movement are in super condition, and the watch is as rare as hens’ teeth! I’m very envious indeed, but it has to go back to Norway…