1968 Omega Geneve Chronostop Service Document (Service by Archer Watches)

perks713 · Sep 3, 2022

In 2018 I picked up a Chronostop that needed some repairs. Below is the service doc sent back with the watch. I've probably gotten as much enjoyment looking over the PDF as I have wearing the watch, and I love the watch 😀

Hopefully others enjoy seeing what went into getting this watch running properly again.
--

This watch does not have a seconds hand, but using the minute hand and checking the timing as
best I could, it appears to be running well within specs. I measured the average daily rate to be about
1.5 seconds fast. There is a small amount of positional variation, so the fastest position is crown up,
and the slowest is dial up - you can use these positions for storage overnight to help adjust for small
gains or losses during the day.
The watch did pass both of the pressure tests, however water resistance is not a permanent feature
and must be maintained, and that includes regular pressure testing to ensure that water resistance is
maintained as well as replacing gaskets.

JimInOz · Sep 3, 2022

Wow! How handy, a guide for me to use when I do my two Chronostops.

YYTIN · Sep 3, 2022

That is awesome !
Wish I was closer to your part of the world as I would definitely love my watches (and I) to receive such treatment 😀
And great chronostop by the way

studeb · Sep 4, 2022

Is that standard for Archer? To document the work so thoroughly?
It must take a fair bit of time on top of the work itself, its almost ISO level documentation 😉

JimInOz · Sep 4, 2022

studeb
Is that standard for Archer? To document the work so thoroughly?
It must take a fair bit of time on top of the work itself, its almost ISO level documentation 😉

And some people wonder why it costs more than "their watch guy" who only charges $150.

Archer · Sep 4, 2022

studeb
Is that standard for Archer? To document the work so thoroughly?
It must take a fair bit of time on top of the work itself, its almost ISO level documentation 😉

Yes, every watch I service gets this documentation.

Cenzo · Sep 4, 2022

Very cool to see. Thanks for sharing. Archer's passion for watches and attention to detail drips from his posts here. The level of detail in this post is completely amazing, yet not surprising coming from Archer.

Men · Sep 15, 2022

Archer
Yes, every watch I service gets this documentation.

Impressive. Must take you triple the time you would spend normally without taking pictures!

janice&fred · Sep 15, 2022

Awesome restoration 👍

Archer · Sep 15, 2022

Men
Impressive. Must take you triple the time you would spend normally without taking pictures!

No - taking the photos is quick. I do it so much it's second nature...

dsio · Sep 15, 2022

Just out of curiosity, is the rather high rate of rootedness of these movements found in the wild likely to be related to the fact that there isn’t a traditional second hand, which probably leads owners to just let the chronograph hand run continuously as if it were a second hand?

Archer · Sep 15, 2022

dsio
Just out of curiosity, is the rather high rate of rootedness of these movements found in the wild likely to be related to the fact that there isn’t a traditional second hand, which probably leads owners to just let the chronograph hand run continuously as if it were a second hand?

The wear in this watch isn't related to the use of the chronograph hand, it's just wear in the basic parts of the watch that make it tick.

I see the same wear in regular Speedmasters also.

Cheers, Al

Ron_W · Sep 15, 2022

Awesome work and great result @Archer, and a joy to read !

rspace · Sep 25, 2022

Wow! i already feel like half a watchmaker myself ! Thanks for sharing this and totally agree with @JimInOz. Very few people realize the amount of effort that goes on in the background. And so many watchmakers prefer to just replace parts that can be salvaged. Clearly this is more than just work for @Archer! Great stuff!

rspace · Sep 25, 2022

Archer
The wear in this watch isn't related to the use of the chronograph hand, it's just wear in the basic parts of the watch that make it tick.

I see the same wear in regular Speedmasters also.

Cheers, Al

Hey Al, is this what you do for all requests or does the decision for a complete tear down depend on the initial analysis you do? I guess what i am trying to ask is would i need to budget for a detailed service like this when i buy a vintage chronograph without a service history? Or when the seller provides a acceptable timegrapher reading but the chrono hands don't reset properly etc.
Thanks much for your insights.

Archer · Sep 25, 2022

rspace
Hey Al, is this what you do for all requests or does the decision for a complete tear down depend on the initial analysis you do? I guess what i am trying to ask is would i need to budget for a detailed service like this when i buy a vintage chronograph without a service history? Or when the seller provides a acceptable timegrapher reading but the chrono hands don't reset properly etc.
Thanks much for your insights.

Personally, I only take watches in that are getting a full service like the one shown.

Timing machine readings are not necessarily a good indicator of the movements condition.

If there’s no service history and you intend to wear it, it needs to be looked at by a trusted watchmaker who can tell you what it might need.

1968 Omega Geneve Chronostop Service Document (Service by Archer Watches)

perks713

JimInOz

YYTIN

studeb

JimInOz

Archer

Cenzo

Men

janice&fred

Archer

dsio

Archer

Ron_W

rspace

rspace

Archer

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