Tales from the bench - Lorenz Sub Professional
Friend and forum member Dave gave me a Lorenz Sub Professional to work on this Friday. There was quite a bit of crud under the crystal and he wanted it removed. A simple job I hear you say and so it should have been, but I got a bit carried away, oops!
Anyhow I thought it might make an interesting read.
Here's my victim, a 1980's (at a guess) Lorenz Sub Professional. It's a charming, all original little watch and I love the aged creamy tritium of the indices and hands.
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The back off reveals a signed ETA 955.114 movement and my first challenge, how to release the stem. Can you tell I've never worked with a quartz movement before, lol!
http://i52.photobucket.com/albums/g3...l/P1040062.jpg
Closer inspection revealed a rather large pointer, literally. D'oh!
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So stem removed and a quick flip later and here's the dial. It's in excellent condition and the vast majority of the dust and muck was on the underside of the crystal.
http://i52.photobucket.com/albums/g3...l/P1040067.jpg
Time to don some rather fetching pink finger condoms. It's best practice never to handle a dial with bare fingers, you'll get grease from your paws on the edges which, in turn, will become a dust/lint magnet.
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Put away and covered up for safe keeping. I'll clean those few specks off later. Another handy hint is to cover stuff up ASAP. Going to the loo, answering the phone, checking the how to remove quartz movement stems on the interweb, get that movement and dial covered.
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Right now to that case, you'll see I've put the bracelet back on as it makes for easier handing later.
Removing the gasket revealed an lot of DNA, time for CSI Bristol and Captain Pegwood.
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As the case had years worth of gunge in every nook and cranny I decided it was best to remove the bezel (revealing yet more crime scene evidence) and give the case a good 15 minutes in an ultrasonic cleaner. There's absolutely no point cleaning a dial only to re-case it in a grubby environment.
Ultrasonic cleaners are very good but they won't removed baked on gunge. So it's best to remove as much as possible beforehand with pegwood and an old bit of rodico.
The underside of the bezel, nicely machined (take note some manufacturers) and the case with more detritus to remove, oh the joy of watchmaking!
http://i52.photobucket.com/albums/g3...l/P1040080.jpg
You'll also see the crystal has had a hard life with lots of pretty deep scratches. This led to another little dilemma. Namely the dial and handset are in such good condition they deserve to be shown off in all their glory, not cased behind some battered plastic. Unfortunately the crystal is a unique fit and the chances of finding a replacement are pretty unlikely.
So despite a little apprehension, bugger it up and I've wrecked Dave's watch, I decided to polish it up. Fortune favours the brave and all that, well at least I hope it does.
More brown trouser moments to follow. To be continued....