Pierce Chronograph

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GJH
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Re: Pierce Chronograph

#11 Post by GJH » Sun Feb 19, 2012 2:01 pm

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When I spoke to Jesse about fixing one of these he grunted/laughed.

Seems there is actually a part inside that is made
out of LEATHER!

He says he can fix em, but they are "Challenging!" ;)
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HamiltonIllinois
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Re: Pierce Chronograph

#12 Post by HamiltonIllinois » Mon Feb 20, 2012 7:46 am

You are right, it seems that mostly only the best watchmakers are willing to work on a Pierce chrono. (And by all accounts, that clearly describes Jesse.)

Pierce used an all in-house movement with a then-unusual clutch. Evidently today many other Chronos use a variation of the same clutch, supposedly starting with Seiko in 1968 or 69. I believe only the very earliest Pierce examples from the 1930s used a piece of round leather to act as a friction disk/washer of the clutch. I think before WWII they had replaced this with a plastic or rubber gasket/washer -- and in the long run that was likely even messier than the early leather ones. I own an early 1930's example but my others are from the 40s or 50s. The good news is that the leather on the early ones can be replaced with a rubber gasket also... as long as some tinker-er has not messed it up in the last 70 years.

After finding the following post on the internet a year or 2 ago, I stopped being afraid of them:

I disassembled a Pierce 134 recently because I simply was curious how it is
designed. No plastics with one exception: I found a (formerly) soft plastic
washer within the clutch. First I thought that someone tried to make the
chrono function by odd means, and left it out. The chrono worked without
the washer, but ran not synchronously with the sub second.

So this washer was likely applied to provide sufficient friction with low axial
pressure. And if it becomes hard, the clutch may slip (like without washer).
But it is no problem to cut a replacement from e.g. thin silicone-rubber
gasket material. As everything in this mechanism is adjustable by screws,
even the thickness of this washer is of minor importance.

Else everything is made for eternity, and I guess most not working samples
don't due to misadjustment or missing parts.

Regards, Roland Ranfft


When pushed a bit as to why most watch repair guys won't work on Pierce chronos, this was his response:

Simply because they are too lazy to analyze the function. The many
adustment devices for the travels of levers and springs make the movement
appear complicated, but it is actually simple, and it is kind of comfort that
everything is adjustable to get it running even with distorted or wrong parts.

Regards, Roland Ranfft


I have shared a few emails with Jesse about my examples, and my hope is that he will not mind the frustration. :) I owe him a phone call.
Last edited by HamiltonIllinois on Mon Feb 20, 2012 7:55 am, edited 1 time in total.
Rick
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scio me nihil scire or scio me nescire

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HamiltonIllinois
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Re: Pierce Chronograph

#13 Post by HamiltonIllinois » Mon Feb 20, 2012 7:52 am

FJF wrote:Hey Rick

I see that you have been holding out on us, giving us the old misdirection on Hamiltons and Illinois while you have been cornering the Pierce market. All I can say is WELL DONE. The Pierce look terrific. Would you trade one for a nice Andover ????

Thanks
FJF
I already have an extra Andover or 2. What I REALLY need is a Consul! ;)

"Problem, what problem!?"
Rick
..................................................
scio me nihil scire or scio me nescire

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trim
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Re: Pierce Chronograph

#14 Post by trim » Wed Feb 22, 2012 12:49 am

My pierce chrono has been with my watchmaker for almost 2 years. I can't even find a photo of it.

I have my doubts I'm getting it back any time soon. :shock:

Maybe I should buy another 8-)
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HamiltonIllinois
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Re: Pierce Chronograph

#15 Post by HamiltonIllinois » Wed Feb 22, 2012 9:33 pm

trim wrote:My pierce chrono has been with my watchmaker for almost 2 years. I can't even find a photo of it.

I have my doubts I'm getting it back any time soon. :shock:

Maybe I should buy another 8-)

Another Pierce or another watchmaker?
Rick
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scio me nihil scire or scio me nescire

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trim
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Re: Pierce Chronograph

#16 Post by trim » Wed Feb 22, 2012 9:40 pm

HamiltonIllinois wrote:
trim wrote:My pierce chrono has been with my watchmaker for almost 2 years. I can't even find a photo of it.

I have my doubts I'm getting it back any time soon. :shock:

Maybe I should buy another 8-)

Another Pierce or another watchmaker?
Another Pierce :lol: I really would have loved to wear it - it is frustrating.

I have been learning to service Chronographs, so I suspect it wouldn't be too hard to do a Pierce, of course 2 years ago I had no clue - so shipped them off.

Actually this thread has prompted action on my part, I'm going to call him tomorrow and if it isn't done - I'm asking for it back. It ran when it was sent to him, so I don't rightly know what the hold up is.

He's had a basic Landeron for even longer - I think they must just be beyond him.
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trim
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Re: Pierce Chronograph

#17 Post by trim » Thu Feb 23, 2012 5:35 pm

He hasn't started the Pierce, so I've asked for it back.

I'll be servicing it myself, live, here. Guess we'll find out if they really are so tricky.
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SeanO
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Re: Pierce Chronograph

#18 Post by SeanO » Fri Feb 24, 2012 2:11 am

trim wrote:He hasn't started the Pierce, so I've asked for it back.

I'll be servicing it myself, live, here. Guess we'll find out if they really are so tricky.

YEAHHH!!!!

Celebrity Deathmatch right here.... :lol:

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trim
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Re: Pierce Chronograph

#19 Post by trim » Tue Feb 28, 2012 1:13 am

I have got it back untouched after its 18 month stay with the watchmaker. It is running, and the chronograph is working - but it occassionally does not return to zero properly, and its last service was long ago and included finger prints. Its a bit of a roughy, unlike the others in this thread. I can't even say it was a good deal, as I overpaid thinking the dial was perfect - but it has a small chip (that I guess I can live with).

Identical to Rick's middle one in the second photo I think.

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Waterproof back, 8 screws.

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The movement is quite nice - plus a bit different and rather interesting.

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And some adds I'd posted previously elsewhere when I first got it

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trim
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Re: Pierce Chronograph

#20 Post by trim » Tue Feb 28, 2012 2:53 pm

HamiltonIllinois wrote:My plan was to just strip it and send the pushers off to someone, but I've never stripped a chrono and I've been chicken to learn.
Rick, I took some photos for you - maybe they will help. They're pretty simple screw retained friction fit pushers.

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The top and bottom pushers have different screw head length (longer is bottom).

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Kris.
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