Help identifying early 1940s Omega 30T2 (34.7mm) with no vis

Hello everyone,

I would appreciate some help identifying an early Omega 30T2.

Details:

• Caliber: 30T2
• Movement serial: 9,283,850
• Case serial (inside caseback): 10,081,232
• Steel snap-back case
• Small seconds
• Diameter: approximately 34.7 mm excluding crown
• Arabic numeral dial

The movement serial appears to date the watch to approximately 1941.

I cannot find any reference number inside the caseback. The only markings I can see are the Omega triangle logo, "Fab. Suisse", "Swiss Made", and the case serial number.

The watch currently has a later Omega service crown fitted, but I still have the original Omega crown that came with the watch.

I have attached photos of:

• Dial
• Movement
• Inside caseback
• Exterior caseback
• Side profile
• Caliper measurement

My questions are:

1. Can anyone identify the reference?
2. Does the dial appear original?
3. Is 34.7 mm consistent with a known large-case or "jumbo" 30T2 reference from this period?
4. Is there another location where the reference number might be stamped?

Thank you for any help or observations.

Thank you for the quick reply that answers nearly everything, and yeah a pity that they stopped offering the archives. Luckily you guys are here as I have a bunch more questions and watches 😉