pocket watch guilt

djolemag · Post by **djolemag** » May 9th, 2020, 1:04 pm

It could be 285-497...

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mountaineer · Post by **mountaineer** » May 9th, 2020, 1:09 pm

djolemag wrote: ↑May 9th, 2020, 1:02 pm Not sure, there are variations through time, but 6497 should not have fixed stud...

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I am going to take your word for it. It is beyond my knowledge base.

Do you think a 6497 wheel Short pinion (without seconds) and would still fit this movement? How about taller cannon pinion and hour wheel?

djolemag · Post by **djolemag** » May 9th, 2020, 1:12 pm

CP and HW should be the same as 6497.
Not sure about seconds wheel but it should fit, as I remember...
You can simply check what stands under the balance:
"285
497"

or

"6497"

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mountaineer · Post by **mountaineer** » May 9th, 2020, 1:16 pm

djolemag wrote: ↑May 9th, 2020, 1:12 pm CP and HW should be the same as 6497.
Not sure about seconds wheel but it should fit, as I remember...
You can simply check what stands under the balance:
"285
497"

or

"6497"

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Thanks I did not realize the markers were there. I will check when I have time.

Post by **spade_lt** » May 9th, 2020, 2:02 pm

mountaineer wrote: ↑May 9th, 2020, 1:01 pm I thought is was a 6497 because of the center jewels and marked 17 jewels.

Does 285 not have a brass center “jewel” and marked 15 jewels?

Not necessary. I have 285's with or without incabloc and with 15, 17, 21 jewels.
And vice versa - I have even seen early 6497 without incabloc and with 15 jewels.

This one is probably 285 or 497...

djolemag · Post by **djolemag** » May 9th, 2020, 2:04 pm

spade_lt wrote:
mountaineer wrote: ↑May 9th, 2020, 1:01 pm I thought is was a 6497 because of the center jewels and marked 17 jewels.

Does 285 not have a brass center “jewel” and marked 15 jewels?
Not necessary. I have 285's with or without incabloc and with 15, 17, 21 jewels.
And vice versa - I have even seen early 6497 without incabloc and with 15 jewels.

This one is probably 285 or 497...

Agree, as mentioned above, fixed stud is crucial difference

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mountaineer · Post by **mountaineer** » May 9th, 2020, 2:50 pm

Educate me, is this what you mean by fixed stud?

InkedGallet 3_LI.jpg

Does this make the movement more fragile?

Post by **spade_lt** » May 9th, 2020, 3:35 pm

mountaineer wrote: ↑May 9th, 2020, 2:50 pm Educate me, is this what you mean by fixed stud?
InkedGallet 3_LI.jpg

Does this make the movement more fragile?

Yes, that's a fixed stud.
No, it doesn't make it more fragile - it just makes harder to adjust beat error. Most old(er) movements have fixed stud holder...

You can use it for your build instead of the 6497 without any problems / differences. Although, you should first check the diameter - it it's 285 it most probably should be the same size as 6497, but (in rare occasions) it might be smaller (~35.5mm) or bigger (~40mm) - the difference is basically in the size of the mainplate.

chrislovessushi · Post by **chrislovessushi** » May 9th, 2020, 3:50 pm

Lol, I have a ton of pocket watch guilt. But the especially nice ones get Asian clones

mountaineer · Post by **mountaineer** » May 9th, 2020, 7:39 pm

chrislovessushi wrote: ↑May 9th, 2020, 3:50 pm Lol, I have a ton of pocket watch guilt. But the especially nice ones get Asian clones

That's funny, I thought about putting a rough finished a6497 I have laying around into the case.

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