Watchmaking Archives - Page 5 of 16

Stuck on vintage LeCoultre

I recently picked up this vintage LeCoultre automatic. Still runs but needs some work. It’s an old bumper, a P812 to be exact. After removing the case back and stem, the movement and dial still don’t want to come loose. I want to be very cautious as this is one of the more expensive watches I have worked on. Could be just a stubborn retainer ring? Or is there a unique quirk of this watch that I’m overlooking? Any help would be much appreciated.

Help with Dial Swap on IXDAO Pelagos 39 (PT5000/SW200)

Hello everyone, I’d appreciate your input.

I’ve got a custom-assembled watch with a PT5000 and my own dial. I recently bought the IXDAO Pelagos 39 homage (39mm, 11.5mm thick, titanium case), which came with a SW200. The idea was to simply swap in my …

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Non removable bezel?

Hi,

Are some bezels non-removable?

Friend of mine asked me to change the battery in one his watches. I ended up cracking the crystal when I was pressing the back in. So, I was going to replace the crystal. But, I can’t for the life of me get the beze…

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Servicing a 70 Year Old Benrus

I have been working on repairing a 70 year old Benrus Citation Copley watch that I inherited from my grandfather. I had taken it to a watchmaker who didn’t seem to have done anything to it for the money he charged me, so I decided to learn to do it myself. It has an ETA 1220 movement.

I have it all cleaned and have reassembled and lubricated the escapement. I still have to put in the keyless works and motion…

Servicing a 70 Year Old Benrus

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mechanical chronograph – possible to use it too much?

I was doing some background reading about my new Hanhart 417ES. I was reading about French Type 20 chronographs, and I read (here) the original specification said the chronograph should be able to perform "300 minimum chronograph operations before…

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Overhauling a Seiko D229-5000, digital with a crown! Which is playing up

Here’s a fun one I thought I’d share. This thing is beat up to hell, but the module works great, just a faint bit of that oil slick aging on the LCD. Except the adjust switch in the crown is touchy, which makes it almost impossible to set…

Carefulling, carefulling… Oops

Hm. How did that hang together? Missed it. Hindsight says the trick is to lift the front half off, and hopefully all that junk will stay where it belongs in the back half. The whole…

Overhauling a Seiko D229-5000, digital with a crown! Which is playing up

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Crown gaskets for EMG DL63 Chronograph

Hello everybody,

I need to replace the two gaskets on a EMG DL63 Chronograph but unfortunately I have no access to the removed gaskets. Would anybody know the size of the gaskets used on the watch?

thank you

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Valjoux 7750 17 jewels balance isue

Hello everyone.
I have a Valjoux 7750 movement with 17 jewels. As far as I know, the difference between the 17 jewels and the 25 jewels, among other things (but not very much, I think), is the oscillation frequency: 21600 for the 17 jewels movement and…

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Click Spring Positioning

I didn’t want to ask this. I searched for quite a while for my own answer. I’m working on a Bulova 10BC that I’ve let sit for a very long time. So long in fact, that I can’t remember where to position the click spring in relation to the click. Am I compressing the spring so the click is pushed to it’s furthest clockwise position or do I leave the spring uncompressed and place the click squarely in the center? I can feel the heads shaking in shame at this question.

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Seitz Lubrifix

Hi too all. I have a 1950’s Zodiac hermetic with a missing triangle shaped Lubrifix endstone. Picture below for best description. Does anyone have a source for a replacement?

…

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