ID on a Swiss movement

Buffomarinus

Registered User
Mar 7, 2020
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G'Day,

A mate just asked if I could identify and repair a pocket watch he picked up at a local market.

The movement in question is of Swiss origin, size ~16s and has 16 jewels. As can be seen in the photos below it is labelled "Royal Lever" and has a very unique (unique to me) regulator.

Can anyone provide information on the manufacturer and possible production date?

Any help appreciated.

Cheers,

Rob FNQ, Au

Movment.jpg Regulator.jpg
 

captainscarlet

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Oct 15, 2013
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This movement looks to be a variant of the Revue cal 30 (Gédéon Thommen) with cam disk regulator. Circa 20’s I would say.
 
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Bila

NAWCC Member
Jan 22, 2010
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This movement looks to be a variant of the Revue cal 30 (Gédéon Thommen) with cam disk regulator. Circa 20’s I would say.
It does very much so, but Rob (the OP) said it was 16 Size not 18 Lignes, there is a bit of difference, I would agree that it is a variant of the "Thommen" base calibre 30 as they were made with the cam disk reg.
 

Buffomarinus

Registered User
Mar 7, 2020
54
16
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Far North Queensland, Australia
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Many thanks for the quick responses.

Bila, Attached is a shot of the winding/setting mechanism that is under the dial.

As far as it's designated size goes, being only familiar with the Yank sizing specs, I called it a "16s." Measured around the dust ring seat it's 41.5mm. The dial flange measures at 43mm.

Rob

Winding mech.jpg
 

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