opening the caseback and looking at serial numbers
Exactly as described, please show an image of the movement and the case number (inside the caseback). If you can do that, I'm sure we'll be able to tell you about your watch.
Exactly as described, please show an image of the movement and the case number (inside the caseback). If you can do that, I'm sure we'll be able to tell you about your watch.
Just guessing here though as the photo is way out of focus.
I'd say it's a 17''' caliber 38.5L 15P which was introduced in 1932 and in production until 1966 in various formats.
17''' is the diameter of the movement in lignes (37.5mm).
L is for Lépine, or open face style.
15P is for 15 jewels (P is Pierres or "stones").
The serial numbers would date the watch to somewhere around 1935.
It has a "silvered" dial with blued steel "club" style hands.
Just guessing here though as the photo is way out of focus.
I'd say it's a 17''' caliber 38.5L 15P which was introduced in 1932 and in production until 1966 in various formats.
17''' is the diameter of the movement in lignes (37.5mm).
L is for Lépine, or open face style.
15P is for 15 jewels (P is Pierres or "stones").
The serial numbers would date the watch to somewhere around 1935.
It has a "silvered" dial with blued steel "club" style hands.
Thanks for that — 37.5mm looks about right. Slightly less blurry image here
I think Tom has expanded my brief assessment with some great info. About the only detail still to be found is the exact model.
If you look under the balance you can see the caliber stamp ending in "T?". The "?" number will tell you what iteration of the movement you have.
the number after T, as best as I can tell, is 1
And my 38.5 with similar numbers is a T1.
I agree with all that @JimInOz writes. I have a 38.5 watch with very similar numbers which dates 1935.
In this period, Omega used similar dials and hands on various different calibres (such as 35.5, 37.5, 37.6, 38M, 39.1 and even wrist watches).
Here are a couple of mine with similar dials/hands (not the same), both calibre 38M L:
The following three are taken from Omega’s book AJTT: again not the same but with similarities:
The following (38M L) is taken from a 1934 catalogue:
Also from AJTT are two adverts that Omega used in 1934/1935 in an Italian promotional campaign, on the right a wristwatch with calibre 26.5:
In summary, the style of dial and hands was used over several years in a variety of calibres. I don’t know the reference of the PM’s watch - @Tire-comedon may be able to help with a catalogue.
With all this information am now becoming hugely interested in Omega pocket watches