€7.900 Regular price

Omega Chronograph 18k Pre 321 Jumbo 1944

The Pre 321 cal. 27-CHRO-C12: In the early 1940s, Omega commissioned its sister company Lemania to produce a new chronograph mechanism that would be as small as possible and yet capable of totalizing the hours in a 12-hour counter.

At the time, neither Lemania nor Omega could have imagined that this would probably be one of the most important developments in the company’s history, as it was the forerunner of the caliber 321 that powers the legendary Speedmaster.

Our particular watch, comes in a Jumbo 37,5 mm rose gold case with crisp case and beautiful unique designed lugs. Accents like the awesome rose gold hands and dagger hour markers complete the classy look of this piece.


  • excellent overall condition, showing minor traces of use
  • 3- body 18k rose gold case (Made in Argentinawith snap-on case back
  • 37,5 mm (without crown) / 47 mm (lug-to-lug) / 18 mm (between lugs)
  • Year: 1944


  • Omega Caliber Cal. 27-CHRO-C12 - manual wind
  • 17 jewels, 18000 A/h, 44 hours power reserve
  • professionally serviced 01/2024
  • +15sec/d / 320°


  • original never touched cream colored dial in good condition
  • original hands, dial and crown
  • very slight and even patina throughout the dial

Has this been authenticated?

All watches at Goldammer are guaranteed authentic by our trusted watchmakers and us. Certificate included!

Has this been serviced?

All watches at Goldammer are professionally serviced before being offered at our shop. Servicing is done by our trusted watchmakers and gone through very capable hands.

Mechanical guarantee?

Each watch comes with a 1-year mechanical warranty so if anything goes wrong, please let us know immediately.

Inspection period?

We definitely want you to love your watch, so you always have 14 days to fall in love or return to Goldammer, no questions asked.

How much is the shipping?

We exclusively deliver worldwide via DHL Express which is free for you.

General care?

Given that most of our watches are around half a century old, they will need to be treated with extra love and care, and they require servicing every 4-5 years.

You want first access to new watches?
- get notified before everyone else -
No thanks, I don't like it classic