Welcome!

Classic watches, watchmaking, antique tools, history, vintage ephemera and more!

Learn about mechanical timepieces and how they work, the history of the American watch industry and especially all about the Elgin National Watch Company! Check back for new content daily.

Although this is technically a blog, the content is not generally in a time-based sequence. You can find interesting items throughout. Down the page some is an alphabetical word cloud of keywords used here. A great way to dig in is to look through those topics and click anything you find interesting. You'll see all the relevant content.

Here are a few of my favorites!

There are some large images on some posts, so that might impact your load times, bit I think you will find it worth the wait. Thanks for visiting!

Waltham Military Timer

Here is a Waltham 16 size, 22 jewels, military timer. It has a black 24 hour dial, sweep seconds, open face base metal case.




This is a "hacking" movement, meaning that the watch completely stops in setting mode so as to allow setting to the second.

In this image, the movement is in setting mode and a little spring of steel is touching the balance wheel. It at the upper right visible near the balance cock. This spring stops the balance wheel, and thus the watch.

In winding mode, that spring is moved out of the way and the balance starts.

The black gear on the back is sitting on the 4th wheel. The 4th wheel is the one that turns one revolution per minute, and this is where, on the other side, the seconds hand would be on a typical pocketwatch (the location of that sub-dial for seconds is not a matter of style, but of mechanics). This watch has a sweep seconds hand, mounted in the middle. The black gear drives a pinion on a shaft that passes inside the center wheel arbor, through the watch, to carry the sweep seconds hand over on the dial side.


The hour hand on a watch like this one goes around ones each 24 hours, instead of the usual 12 hours.
Find more military time keeping topics here!

Post a Comment

Click "Older Posts" just above for more, or use the archive links right here.

Blog Archive