Job Number 180043

This is an older Waltham 18 size, 7 jewels, 1877 model, "Broadway." It is key wind and set. This is a pretty primitive American watch, heavily based on English designs.

First, here are a few "before" images. There's a lot of crime in these pivots.

On the the watch train. As one would expect we have the English style tangential lever escapement found on early American products.

There's many irregularities on a watch like this. For example, I found that the ratchet wheel only fits one way. Although the hole in the center appears square, it's not. This is simply a manufacturing flaw. It may well have been hand cut.

This watch feature a solid balance wheel; no temperature adjustment, and no timing screws.

There are very few options on adjusting the rate on a watch like this. The ordinary steel of the hairspring will have changed its elastic properties over the last 100 years. Timing may be quite a bit off.

We have to accept this antique for what it is.

On the underside of the balance wheel, we see a little dimple where a bit of silver has been removed at the factory, to true the wheel (even out the mass).

Under the balance cock there's an odd extra bit of machining. A little material is cut away.

Maybe it's a mistake. Or perhaps this piece of brass was going to be something else before it was a balance cock.

I have not yet measured it, but we can be pretty sure this old fellow is a "slow beat" movement, 14,400 beats per hour (bph).