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Timex M25 lift angle?


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Question

I’m working on a friend’s M25 (2675302574) and I’m wanting to adjust it on my timegrapher. I’ve checked the service manual and various lift angle registgeries, but can’t find any reference to LA for the M25 (or M24 for that matter).

Anyone ever seen this documented?

Many thanks - Rory

 

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See link below it looks like most Timex watches have either have 51 or 52 degree lift angle.

http://relojesdetorre.weebly.com/uploads/1/0/1/3/10134874/tabla_de_angulo_de_elevacion_4.0.xlsx
 

ps there is strange Timegrapher reading that I have not seen before. By any chance is the hairspring magnetised 

pps  adjusting the lift angle will make very little difference to the amplitude readings.


 

 

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2 hours ago, clockboy said:

ps there is strange Timegrapher reading that I have not seen before. By any chance is the hairspring magnetised 

Definitely unusual? Counting the dots though it looks like each revolution of the escape wheel is where the problem is occurring. Often times when the line spacing changes that is caused by amplitude variations.

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12 hours ago, rodabod said:

Might be that the escape wheel wasn't cut perfectly symmetrically as you can see one pallet (pin) starts to advance in time while the other retards. But its a miniscule error and one that will be entirely insignificant, especially as the amplitude picks up.

Yes I was thinking that too. A wave type line sometimes shows an out of shape escape wheel. However looking at the reading I would there are other issues to be addressed.

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Dear all,

I may be completely wrong here, but doesn't the Weishi expect the audio sequence of a swiss / glashütte  lever escapement? Could it be that it doesn't know how to interpret a pin pallet escapement?

Greetings from Hamburg Alex

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On 1/2/2021 at 9:03 AM, clockboy said:

See link below it looks like most Timex watches have either have 51 or 52 degree lift angle.

 

9 hours ago, AlexanderToerzs said:

I may be completely wrong here, but doesn't the Weishi expect the audio sequence of a swiss / glashütte  lever escapement? Could it be that it doesn't know how to interpret a pin pallet escapement?

There would be no reason to have lift angles for Timex watches if it didn't work. The problem is the list doesn't say whether it's a Swiss lever or a pin lever?

Then in real life the timing machine is expecting a series of sounds coming in. Specifically the roller jewel hitting the fork the unlocking sound and a locking sound. Doesn't care how or why these occur only concerns it occurs over a reasonably specific time sort of. The Chinese machine is more open to these sound so if they're really bad it wrong or different It still will try to give you something. Unlike the witschi machines where things are too far from where there supposed to be you will get an error message.

The graphical line is indicating a problem but this is a pin lever watch. Usually means there made cheaply and it's an older pin lever watch which means things are worn. Personally I would just pretend it's a solid line and regulate so it looks more or less on zero it just don't worry about it. As long as it runs it should be fine. It's only if you're having a problem would you get worried about this.

Then in the meantime if anyone has a pin lever watch put it on the timing machine I'm not sure if I have a running pin lever watch in the house?

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1 hour ago, clockboy said:

See link below it looks like most Timex watches have either have 51 or 52 degree lift angle.

http://relojesdetorre.weebly.com/uploads/1/0/1/3/10134874/tabla_de_angulo_de_elevacion_4.0.xlsx
 

ps there is strange Timegrapher reading that I have not seen before. By any chance is the hairspring magnetised 

pps  adjusting the lift angle will make very little difference to the amplitude readings.


 

 

Thanks for the link.  It’s a donor movement and still to have a wash and lube - I almost hope its magnetised, demagnetiser is a tool I haven’t added to the bench so far 😆

Rory

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Might be that the escape wheel wasn't cut perfectly symmetrically as you can see one pallet (pin) starts to advance in time while the other retards. But its a miniscule error and one that will be entirely insignificant, especially as the amplitude picks up.

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3 hours ago, AlexanderToerzs said:

Dear all,

I may be completely wrong here, but doesn't the Weishi expect the audio sequence of a swiss / glashütte  lever escapement? Could it be that it doesn't know how to interpret a pin pallet escapement?

Greetings from Hamburg Alex

Good point indeed. My answer is I just don’t know. 

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On 1/4/2021 at 2:33 PM, JerseyMo said:

is the movement currently keeping good time?  

Not the greatest - giving it another inspection.  

May be on the lookout for a replacement balance complete - I see one for Timex 24 on eBay, so may snag that in the hope that it’s a good fit for the 25 too.

M24/25 service manual has balance assembly reference number of 721, while the part on eBay is 24-60145.  Anyone able to confirm they’re one and the same?

Regards - Rory

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holy molly the asking price for the part is outrageous!

Price:

GBP 39.99

Approximately US $54.50

not likely to be the balance but if you feel like spending this kind of dough. I'd be happy to sell you one too! 🙂

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5 minutes ago, JerseyMo said:

holy molly the asking price for the part is outrageous!

Price:

GBP 39.99

Approximately US $54.50

not likely to be the balance but if you feel like spending this kind of dough. I'd be happy to sell you one too! 🙂

Hi - that’s for a bag of 30 🙂   I think it’s more likely in the region of £7 or so for a single.

I found the process of re-pinning the hairspring to be quite frustrating - getting just that final stepped part of the spring to stay in place to be pinned. 

I did at one point accidentally pin the spring beyond that stepped portion at the end and I introduced a twist. Not happy with the subsequently ‘fixed’ spring, so would really like to use a replacement.

Do you stock them?  If I can’t source here in the UK I’d love to buy one .. maybe two 🙂 

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Yes, I relied to quickly and did not see it was the price for all of them.  If you can buy just one that that would be best.

I'm in US so shipping is prohibitive. 

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