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Discussion Starter · #1 ·
Could not find in bidfun, catalogue oficiel nor in the linked websites in this forum

The movement itself is 35mm size

 

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Hmmmmm. This is where we have to use a little imagination.

I have no idea who actually made the movement in its present form. The balance cock shape, however, strongly reminds me of Orator. And when I look at this movement:

bidfun-db Archiv: Uhrwerke: Orator 17.5'''

...it does rather look like at least the base movement. Not only the shape of the balance cock fits but also:

- the shape of the lever cock
- the exact positioning of the gears in the geartrain in relation to each other (angle between 2nd, 3rd and 4th gears >135°)
- positioning of the stem release screw

Did Orator make this movement as a chronograph? Not necessarily. Sometimes, makers bought base movements and added their own chronograph mechanism (a modern example would be Habring, using the Unitas 6497). Also, I have no record of Orator making chronograph movements. However, that doesn't rule it out.

And in the end, it might even not be an Orator movement at all.....

Hartmut Richter
 

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Hartmut, there is a little note from Dr Ranfft at your link that I guess you read:

"The calibre was assigned to Orator due to the unique shapes of balance cock, regulator. Moreover a Chronograph Orator 497 with nearly the same base plate is known. But in other movement catalogues this calibre wasn't yet noticed."

Might be this one. :)
 

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Well spotted! No, I didn't see that (I was marginally short on time at the time). So it must be that or a related 16''' movement by Orator then.

Hartmut Richter
 

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Discussion Starter · #6 ·
So I was spending my day clicking the internet :D

Found one LIP
Looks to have some similar constructions but still far away from a match

Anyone got LIP caliber catalog? :D

 

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Sorry, a definite fail. Look at where the third gear is on both movements: in yours, it's covered by the main part of the chronograph clutch gear whereas in the LIP, it's inside that gear. Other differences:

- the balance cock is completely different
- the shape of the lever cock is completely different
- the stem release screw is closer to the stem

...plus plenty more if you look hard enough.

Hartmut Richter
 

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Discussion Starter · #8 ·
yup lots of differences, just that it has same similar levers
but the one on the right is Valjoux 61 that James showed earlier
maybe it really was a design inspiration for this obscure caliber
 

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Discussion Starter · #11 ·
This is inner caseback

Looks like BD and sun(?) above

The case is not silver, probably brass nickel or chrome plated

Serial number is reprinted two times? :|



 
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