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Heavy Duty Lem Back Opener.

Geo
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Geo Distinguished Member

Geo

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My latest acquisition from Fleabay for £41 is an LEM screw case back opener. It was in functional but poor condition when I received it, but after a good clean and minor refurbishing it looks the business. It will fit screw backs up to about 45mm with the standard x6 square notch screw backs. It is built like the proverbial brick sh-- house so should deal with the tightest of backs.

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  • 6 months later...
bobm12 Distinguished Member

bobm12

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No luck but I found a pricey solution forced on me...I broke my old one! It is unbelievable or maybe my Taekwondo years are paying off, using only my hands - mind me, bare hands -- and really pushing it I broke the metal jaws of a Swiss tool: on one hand the case holder, on the other hand this tool which I broke where the arrow is pointing (clean off the center of the jaw, not the tip, I should have taken a picture):

 

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Not an easy feast mind you! It was solid metal! The watch is still not budging. Some special oil over night then, while making soup in a pressure cooker, put the watch on the lid to "warm" it up, then in the fridge to "cool" it down quick, repeat, still not budging! I'll post a picture later. Finally I broke the tool trying to open it. Damn Seiko screw on back!

 

New machine, still processing at the post office:

 

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Tool + attachments = $$$$ you don't want to know ( and much less to let my wife find out!) :hot:

 

Cheers,

 

Bob

Edited by bobm12
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Marc Distinguished Member

Marc

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Morning Geo,

I just spotted this on eBay and thought of you;

181617709288

It looks like it's a set of additional inserts or adaptors for your U-boat case opener. Absolutely no use to anyone unless they have the rest of it, which you do.

Just thought you might be interested.

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Geo Distinguished Member

Geo

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Wow!

Some things are meant, thanks for the heads up Marc, I really do appreciate it.

Now bought and paid for.

If you ever have a watch back that is as tight as vintage rifle barrel to unscrew, just give me a call. :-)

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  • 7 months later...
Timeside New Member

Timeside

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Hi Geo, Nice Buy. You do not see many of these Japanese jobs around. I only know 3 guys with them you are number 4. I have the manual if you require a copy let me know.

 

Mine is 40 years old in good condition used nearly every day and the steel jaws are still perfect. I have manufactured different lug plates mainly to accommodate TAG cases.

 

It got beat the other day for the fist time :( a Breitling 13 sided 26mm Quartz on so tight it managed to force the jaws back enough to slip the flats.

 

Enjoy.

 

Terry

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Geo Distinguished Member

Geo

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A warm welcome to the forum Terry and thank you for the comments regarding the LEM case opener.

I had no idea that it was Japanese, I've trawled the net and found nothing about it whatsoever. I would be most obliged if you could furnish me with a copy of the instructions. I'll send you a PM with my address.

This is a great forum with lots if very helpful guys from all sorts of backgrounds, I do hope you post some of the work you get up to and join in with the fun. :)

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