Never seen one like this, without a pallet fork that is

[Bearman]

Evening,

This came in a job lot, and I thought I'd have a crack at a ladies watch. Mostly as it's a little bigger than a lot of others. Looked in good shape with a rolled gold back to it. As a guess 1940s ish?

 

 

 

What really caught me by surprise was the fact it doesn't have a pallet fork. I thought fairly unusual after I realised that I'd not lost anything, it was never there to begin with. Anybody else seen one like this? Does it have a particular technical name for type of movement?

 

Which left me wondering as to who the maker is and it's real age. There are two marks, something that looks like a "TR" contained in a shield and "AS175".

Looking on the ole interweb I think it's possibly an A.Schild. Have I identified it correctly?

Thanks in advance for any insights.

 

 

[Nucejoe]

52 minutes ago, Bearman said:

What really caught me by surprise was the fact it doesn't have a pallet fork. I thought fairly unusual after I realised that I'd not lost anything, it was never there to begin with. Anybody else seen one like this? Does it have a particular technical name for type of movement?

I think Its called a " cylinder escapement"     have one that hasn't been serviced in past forty years but starts and runs as soon as you wind.

Rgds

[ManSkirtBrew]

As @Nucejoesays, that's a cylinder escapement. The only one I've ever worked on was also in a ladies' movement, which was super tiny. Really interesting mechanism!

As for the maker's mark, looks like "Ebauches Trust" to me:

I found these pictures with a web search for "mechanical watch manufacturer stamp."

[nickelsilver]

Yes, cylinder escapement. Hard to time on a lot of modern timing equipment but member praezis has a killer software that will pick up all sorts of escapements (and is Witschi level+ otherwise).

 

Very important to have all power off before removing balance. Otherwise business as usual, lubricate escapement with 9415.

[Bearman]

Thanks all, I've since found a few youtube videos on the cylinder escapement, really interesting. You learn something new all the time. 

@ManSkirtBrewthanks for confirming my suspicions regarding "Ebauches Trust" I reckon the watch is probably 1930's now. Done some digging on the history of them and it seems they were a forerunner to what is now ETA with a link to a number of makers back then.