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Posted

My wifes Lorus watch has a failed movement, That's easy to remove and replace bur the rear of the case wraps under and I can't see how to get at the front of the face to replace the hands.

Anybody dealt with one of these before please?

Thanks

Roy

Posted
40 minutes ago, Royg said:

 I can't see how to get at the front of the face to replace the hands.

That construction is called "front loader" and is very frequently asked by beginners. Enter the search including double quotes in the box top right to obtain the relevant answers.

Since no pictures have been posted since no picture have been posted, please keep in mind that is required for pretty much any question.

Posted

Here's a couple of pics.

I'll run the search this evening.

Initial thought is that there doesn't appear to be a break at the front to create a bezel

IMG_2003.JPG

IMG_2002.JPG

Posted

Hi  from the pictures it is not easy to discern whether the bezel is removable or not apicture or two of a side on view from both sides would help.  If the crystal is acrylic it may be lifted out, but to do that you need a tool. If its glass the case will need to be split. I notice there is only one dial foot left is the other stuck in the front plate?.

Posted
1 hour ago, Royg said:

Initial thought is that there doesn't appear to be a break at the front to create a bezel

Likely there is, but we can't tell because no side picture has been posted. 

If there is not, check below video by our host Mark Lovick. Note that a pump tool is also available, which works much better than a syringe. 

 

Posted

Replace the caseback and apply low pressure compressed air through winder. Glass will pop out.

An 8bar+ air source is way, way too much!! (Don't ask😳)

  • Haha 1
Posted

Thank you all for the fast and helpful replies.

philipk5 - that sounds like a good ide.

I have 3 options

Car tyre 12 volt compressor ( too high?)

Bicycle tyre pump

Air duster compressed air can.

Number 3 is my best guess?

what do you think?

Posted

BTW...

watchweasol -

By dial foot do you mean the hands?

They are all there under the crystal as the popped off when I removed the movement.

Posted

Bicycle tyre pump of your three options should do it.

Or follow Marks method with a syringe (He seems to know what he's doing! 👍)

Dial feet are the small studs that locate the movement to the back of the dial.

Posted
9 hours ago, philipk5 said:

Or follow Marks method with a syringe (He seems to know what he's doing! 👍)

The problem with using a syringe, or other improvised air source, is that getting a good seal to the pendant tube is hit and miss.

The dedicated tool below comes with enough nylon tips, is not expensive, and unlike the syringe, has not failed me so far.

https://aliexpress.com/item/4000233469611.html

  • Thanks 1
Posted
15 hours ago, Royg said:

By dial foot do you mean the hands?

You've got away with not breaking them because this being a basic watch has them just fitted in holes on the module or plastic ring. Other types use screws for a positive lock. It's never a good idea to go by force on watches. One need to know first what is what and why, and get the proper tools to proceed.

Posted

Thank you everyone for your assistance.

Thankfully both dial feet are still intact, the image doesn't really show that.

It's opened my eyes to an interesting pastime and I look forward to digging out all those old, non functioning watches and clocks in the cupboard!

 

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    • Welcome to the forum, enjoy. 
    • Yes, the specific old tools do exist, but may be having one is not needed as they are not cheap, and also You will be able to do without it well enough. My advice will be to use regular depthing tool and adjust it for the exact distance between pallet fork and escape wheel bearings from the watch. Then remove the shellac from the pallet that now doesn't pass the ew teeth and move this pallet in. Then put the pallet fork and ew on the depthing tool and check how they lock. They should not lock when the pallet is in, but You will little by little move the pallet out and locking will appear. Then move just an idea out for reliable work and apply shellac, then check if things are still the same. You have to observe where the teeth fall on the pallets - it must be just a little below the edge between impulse and rest planes. Then You must check how everything behaves in the movement This Potence tool is so ingenious, but actually, the traditional way to do the things is much more simple. Arrange the parts not on the pillar plate, but on the cover plate. Only the central wheel will remain on the pillar plate, secured by the cannon pinion.
    • There is a tool that was made for setting up and adjusting escapements of full plate watches.  There were two styles, the picture below shows both of them.  The lower tool held a movement plate and the vertical pointed rods were adjusted to hold the unsupported pivots of the lever and escape wheel.  There was also a version of this tool that had 3 adjustable safety centres so that the balance pivot could be supported by the tool :  The other version I’m aware of is the Boynton’s Escapement Matching and Examining Tool came as a set of two or three clamps that gripped the watch plate and held the safety centres for the pivots : These do turn up on eBay from time to time.  For some escapement work, you can set up the parts in a regular depthing tool, with the centres set according to the distance between the corresponding pivot holes on the movement.  I hope this helps, Mark
    • Once you are aware of the problem, you can adjust as necessary. I have a couple of the Omega 10xx, and they are not my favourites. They seem a bit flimsy and not as solid as previous generation Omega. But I think that's true of a lot of movements from the 70-80s. For me, the 50-60s is the peak in watch movements, where the design criteria was quality, not saving the last penny.
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