I was working on a Hamilton model 22 ships chronometer today with a bad staff and broke mainspring I was removing the main spring and begin too wonder if there was a end to it or if it went on for ever.I called Larry Crustsinger today to order a new mainspring and he told me these are 60 inches long..

I had worked on the Hamilton 85 size before but this was the first one of these model 22,s I have worked on and was impressed with the quality I may buy one of these I like it..

I may load some pictures of the various parts if the owner says it,s okay

Owner says its OK

A picture of some of the varoius parts, the cap jewels ,wheels ,pallet fork and other parts are very much like the smaller 992b,s.

The arrow points too the gears that transfers the power from the mainspring barrel too the dial side of the movement..There is a series of smaller gears not shown in the picture one gear moves the indicator and the other moves it down as the spring unwinds.

In this picture the part #1 is the gear the indicator hand sets on and the other #2 shows a lever that has too be pushed too be able too pull the stem in the setting postion.

nice looking movements 36 size

Dial side

Interesting watch... I was looking at the balance wheel (totaly different from any 992 that I have seen) which appears to be solid and begs the question How do they maintain temperature stability? If I am interpreting the screws on the balance properly the MT screws seem to be offset from where one would normally find them they are neither at the balance arm ends nor at the quarter position. Is this positioning a result of being a solid balance?
Regards, John