Blue sky. Black dial.

 

Golden Shadow, ref 166111. A very thin watch at only 5.7mm.

 

That is very beautiful

 

will we ever solve the HPC mystery

 

assume that is a cal 262, anything interesting or unusual on the mvmt?

 

looking to pick up my first UG! what's the reference?would love to find one. so classy

 

That is the reference
UG FS mark 1... My one (pictured above) is the mark 2

 

It's a cal 128. No marking on the movement

 

awesome ill be on the lookout for one!

 

I thought that it was solved long ago being the abbreviation of Henrique Pfeffer Caracas...

 

that was my theory, but I'm not sure it's correct for many reasons already discussed.

 

Wait I thought it meant "High Performance Chronometer", is that debunked because of lack of numbered movement?

 

I think the (more or less) general feeling is: debunked by lack of any concrete support but not for lack of numbered movement. I have a list of 1100+ movement numbers but only a handful are HPC

 

there's two threads on this topic here on OF, if you want to get all the details, but yes it was debunked for all kinds of reasons

 

Hey, haha as @LesXL already said, that is the reference: Ferrovie dello Stato “FS” mk1. It is 34mm. The mk2 is 36mm. Both the mk1 & mk2 have an enamel coated dial, whereas the mk3 (also 36mm) has a silver colored dial.

You can learn more about them here:
https://omegaforums.net/threads/universal-geneve-fs-the-other”-railway-watch.55668/

 

Just back from a preventative maintenance service, my early 50s 12445. This was my third UG. Fits beautifully under a shirt sleeve. A quintessential dress chronograph.

 

This came in from the Easter Bunny.

 

lovely tropical glow.