Jaeger Clock adjustment

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AFPU
Posts: 5
Joined: Sat Nov 15, 2025 2:45 pm

Jaeger Clock adjustment

Post by AFPU » Thu Nov 27, 2025 3:02 pm

Hi. Just taken delivery of my 1937 Rover 12 Sports Saloon and I am wondering how to adjust the Jaeger clock?

Also would it be wind up or electrical?
1937 Rover 12 Sports Saloon

SHyslop
Posts: 117
Joined: Thu Dec 30, 2021 4:17 pm

Re: Jaeger Clock adjustment

Post by SHyslop » Sat Nov 29, 2025 7:18 pm

If this is FPD, someone has been at it already and fitted a quartz movement. These are usually powered by an AA battery but a cleverer arrangement can be made with a transformer down from 12v to 1.5v, to save guddling about behind the dashboard.

It should be a wind up Jaeger,look for the right one to match the lettering on the speedometer (and the existing clock, but the hole for the hands will probably have been made bigger for the quartz mechanism).
There are a plethora of small variations, year to year. You also want one with a winder/adjuster at about 7 o'clock and longer, rather than 6 o clock and shorter. An alternative might be to find a Smiths one (they are the same mechanism as in the Jaeger) and change over the mechanism but the hands might not be right and the price difference not worth it., also most of them tend to have the adjuster at 6 o clock. I am sure I have changed the orientation of a winder in the dim and distant past.

The electric clocks from 1940-47 are bigger in the face and, in their original configuration, can have reliability issues compared to the generally excellent reliability of the pre war mechanical movements.

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