Crusty - watch gone bad.

[retroleds]

We could have a photo contest - crustiest watch, with internal and external classes.

[LEDluvr]

I don't think there is any chance of this one coming back to life.....

[ELY_M]

wow poor omega :(

[bruce wegmann]

My hat's off to Ed; that's the worst I've ever seen. Try this...get some CLR [Calcium-Lime-Rust remover], fill a container deep enough to allow total immersion of the watch, and drop her in [I would toss the caseback in, too]. In 60 seconds, that entire case will be as clean as the day it left the factory, and all traces of corrosive material will be neutralized. Give it a whirl, and show us an "after" pic... I agree about the module; when parts start falling off, the story is pretty much over.

[retroleds]

On the mend....



Surprised nobody commented on the light sensor laying in the crusty crumbs. Wait, I guess Bruce did.
Bruce is quite right - Lime-away or CLR or something simular for rust and calcium stains. DOn't leave on like for hours though...most can lightly etch glass and porcelian(Pulsar/Omega/Hamilton logos).

[bruce wegmann]

Great job, Ed. The only thing I'd have different is to pull the O-ring out, too. Traces of the corrosives may still be hiding underneath, and before I'd put a new module in this case, I would want ALL of that stuff out of there. Amazing what some properly applied chemistry can accomplish, isn't it?

[retroleds]

Bruce - that case ring has been out. YEah, I've been recommending Lime Away for ages. Good for other things too "What about those Pulsar, Litronix or National Semiconductor modules with pronged battery contacts? A cotton swab wetted with a small amount of a mild bathroom corrosion or water stain remover, such as Lime-Away, will lift most of the corrosion off quickly and safely. Then take a dry cotton swab and blot off all of the excess. Again, finish up by applying a very light coating of electrical contact cleaner/protector or die-electric grease onto the prongs to protect them against the next [ inevitable] assault." from
http://www.thedigitalwatch.com/Archives ... ip_001.htm

I'm mainly geeked at what a beauty this one is externally....a repair job where the customer wondered what I'd give for the most pristine case and original glass I've ever held(just covered with grime which I had removed by then). Even with the cost of a new module it was less than $1000

[LEDluvr]

Great job there Ed - and great tips for us newer folks to follow too.