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Function Help with a Waltham 8 Day Car? Clock

Leng510

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Oct 16, 2021
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Hi all!! I came across this gem at an estate sale and am having trouble with identification. It looks like a car clock, but has a case more like a marine clock. Serial number dates it to 1908. Wondering if anyone can help me with details about its use. It works!!

image.jpg image.jpg image.jpg image.jpg
 

Jim Haney

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Leng,
Welcome to the NAWCC Forums. Yes it is a Waltham 8 Day Car Clock.

Waltham did make ships chronometers out of these in Gimbals and wooden Outer & Inter boxes for ships.

The wooden box you have is a after market one that someone has done up for themselves to make a nice home for the watch.
 

grtnev

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Hi all!! I came across this gem at an estate sale and am having trouble with identification. It looks like a car clock, but has a case more like a marine clock. Serial number dates it to 1908. Wondering if anyone can help me with details about its use. It works!!
Some additional threads that you may find of interest.

https://mb.nawcc.org/threads/waltha...r-chronomiter-or-car-clock.39761/#post-290749

https://mb.nawcc.org/threads/help-on-waltham-8-day-15j-wind-indicator.34122/

https://mb.nawcc.org/threads/questions-about-a-waltham-marine-chronometer.7672/

8 day, size 37 movements used for car clocks mounted in the dash usually had a relatively long winding/setting stem at the 6 o'clock position so that when the clock was mounted in the dash, the winding/setting stem would protrude below the dash so you could reach it under the dash and wind and set the clock. With the short winding/setting stem at 12 o'clock and a ca: 1908 manufacture date, if this clock was in a car, it most likely was mounted somewhere else other than in the dash - which was common prior to 1920 or so.

As indicated in the attached threads, this could also be a desk clock.

15j adjusted movements were also used for chronometers. However, yours only has a simple regulator as opposed to a micrometric regulator and one would expect a chronometer movement to have a micrometric regulator.

Your watch also has a "spot type" wind indicator to give a visual representation on how much the mainspring is wound.

Nice find!

Richard
 
Last edited:

grtnev

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Some additional threads that you may find of interest.

https://mb.nawcc.org/threads/waltha...r-chronomiter-or-car-clock.39761/#post-290749

https://mb.nawcc.org/threads/help-on-waltham-8-day-15j-wind-indicator.34122/

https://mb.nawcc.org/threads/questions-about-a-waltham-marine-chronometer.7672/

8 day, size 37 movements used for car clocks mounted in the dash usually had a relatively long winding/setting stem at the 6 o'clock position so that when the clock was mounted in the dash, the winding/setting stem would protrude below the dash so you could reach it under the dash and wind and set the clock. With the short winding/setting stem at 12 o'clock and a ca: 1908 manufacture date, if this clock was in a car, it most likely was mounted somewhere else other than in the dash - which was common prior to 1920 or so.

As indicated in the attached threads, this could also be a desk clock.

15j adjusted movements were also used for chronometers. However, yours only has a simple regulator as opposed to a micrometric regulator and one would expect a chronometer movement to have a micrometric regulator.

Your watch also has a "spot type" wind indicator to give a visual representation on how much the mainspring is wound.

Nice find!

Richard
The attached PDF file may also be helpful.

Richard
 

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Tom McIntyre

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Waltham actually made the "chronometer" in three styles and the Roth Brothers also packaged it similarly to the Hamilton Model 22 flat chronometer watch. That makes a total of 4 packages. The up/dn indicator can either be numeric or the spot style or missing entirely for more possible combinations.

My presentation on these is available online From War to Boudoir.

Here is the picture from the brochure that Waltham published on the pieces and some pictures of the one I had that is most like the "flat rubber mount" that may have been the inspiration for the subject piece.
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