Just had a couple of old watches arrive and would appreciate some advice before I attempt to open this case.
The back seems to have a hexagonal nut - do I need a special tool - does it screw off or is it a clip fit.
The watch is extremely dirty but virtually untouched for years. Oh yes and does the crown need replacing.
Thanks chaps

 

You do know that's a redial, right?

 

Not really interested - just like the watch - the dial is immaterial to me just advice on opening it

 

This looks like an American 14k GF case with a 351 inside, perhaps by Jonell? I am pretty sure that this is a screw back, and there would have been a special tool to fit over the flats and turn the back off. Some older JLC cases use the same system.

You could try my emergency system for screw-backs, which is a large lump of Blu Tack, kneaded in the hand till quite warm and squidgy, then press it down onto the back firmly and twist to undo. You do need a BIG lump of Blu Tack, though, to get the leverage - but it is safe and can't harm the watch.

Good luck with it!

 

Thanks John will give it a try

 

Hate these with a passion. The back is two pieces, case back and threaded retainer ring.

Here is one in solid gold which is even worse since the retainer ring is gold too.

Without the correct wrench, this works best.

 

Ah Ha, brilliant advice from Norm. Since the retainer ring is separate, my Blu Tack method cannot work, sadly.

What you need is a tool like dat . . . but be very careful how much force you apply. It would be all too easy to distort the retainer ring.

 

OMG that looks like a cruel machine - think I will wait until next Tuesday and let the WM do the business

You must have nerves of steel to use that successfully especially on a soft gold case.

Thanks with admiration

 

BTW, its a Wadsworth case.

 

Did a Google and found the tool for the Wadsworth Case. It is tool #158 and the supplier has another two available at $5 each if anyone is interested
in obtaining one they can mail me.

 

There are PLENTY of these 'many sixteenth' wrenches available at any hardware store.