This arrived yesterday, it's a style I 've been after for a while though I would have preferred it in Stainless steel but we all know how difficult early cased Stainless watches can be to find.
The clincher for me was the (fairly) unusual back.
Size wise it is standard for its time ie small at 37mm x 30mm x10mm including crown.
I fully wound it after opening it at around10:30 and I checked it this morning at 08:20 and it had just stopped at 08:15, it was running last night just after 22.00 and it had lost around 3 seconds according to the atomic clock during that 12 hour period...so not too bad.
It's quite heavy being chrome plated brass, and the plating has seen better days but it has a pleasing look to it.
The back unscrews with x4 stainless? screws and there is a black rubberised? gasket that seals the back.
Internally the 15 j movement looks clean enough, the dial is pretty tidy with only a couple of marks and the hands retain their original lume.