Cuban Chrono... Missing parts?

[spectre6000]

I'm watching this Cuban chronograph on eBay. I put a 404 on it, but obviously that didn't take. I would be willing to go a fair bit higher for an unusual chronograph though. The listing claims it's totally functional, but looking at the movement, I can't help but feel they're ignoring a non-functional chronograph complication. I think a lever, and possibly a cam are/is missing that would engage the clutch wheel. I see no mechanical linkage between the pushers and that arm. I am also not familiar with this movement, and have never actually worked on a chronograph, so... A wise man knows when he doesn't know, and all that.

Beyond that, see a missing case screw, a slightly mangled jump spring on the minute counter wheel, some screws that have been less than lovingly manipulated, and some very slight corrosion. Typical stuff for the bottom of the barrel, but no deal killers.

I doubt I'm actually going to buy it (truly not very motivated at this point), but being able to diagnose from afar as well as photos will allow is a valuable skill I'm trying to master.

Edited February 5, 2021 by spectre6000

[spectre6000]

Does anyone see anything? Am I missing something major? Did I nail it?

[nickelsilver]

This looks very much like a Landeron (48, 50 fill in the blank). Seems complete mechanism wise to me. I'm guessing it's a Russian copy of some sort but I have zero knowledge of Russian watches so I'll leave it there. Look at some Landeron 48 images and compare.

[HSL]

It most certain looks like a Landeron 48, almost complete. The minute recorder jumper looks homemade.
The cam on the hammer looks a little worn.

The regulator is in full – position so the hairspring is probably sticking to something.
One screw is missing as you say.
Otherwise it looks complete and running. The case is to an Landeron 148/248 so this is probably an transplant.

[nickelsilver]

Oof yes, minute jumper is homemade and probably 20x too strong for sure. Might jump at full wind but doubt it at 24h. 99% chance a landeron jumper would work,  and they are out there.