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Omega Cosmic 2485 Moonphase Jumbo 1947

€10.900

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Omega Cosmic 2485 – Moonphase Jumbo – 1947 / A Complicated Classic in 18k Gold

The Omega Cosmic was introduced in 1947 as the most prestigious model in Omega’s post-war catalogue — and this early Reference 2485 shows exactly why. Housed in a rare 37 mm 18k yellow gold case, it features a complete calendar with moonphase complication, powered by the revered Caliber 381, based on a Lemania ébauche.

The elegant dial showcases day and month windows at the top (Spanish language wheels), a moonphase within the sub-seconds at six, and a vibrant blue date track encircling the design. Combined with gold hands, a blue date hand, and the warm patina of time, this piece has undeniable charisma.

Preserved in beautiful original condition and unpolished, this Cosmic wears large, both in size and presence. For collectors of vintage complication watches, this one is pure stardust.

- wrist size in our picture is 18cm circumference -

DIAL:

  • original never touched cream dial in good overall condition
  • original hands, dial and crown
  • has some slight patina throughout the dial
  • slight scratches at 9 o'clock and under the day/date
  • day and month wheel is in Spanish language

STRAP & BUCKLE:

  • cognac brown GOLDAMMER calf leather strap fitting up to 20 cm wrist size
  • gold plated stainless steel GOLDAMMER buckle

CASE:

  • excellent overall condition, showing minor traces of use (unpolished)
  • 3- body 18k yellow gold case with snap-on case back
  • 37 mm (without crown) / 44 mm (lug-to-lug) / 18 mm (between lugs) / 11 mm thick
  • reference: 2485
  • year: 1947
  • total weight: 51g

MOVEMENT:

  • Omega Cal. 381
  • 18 jewels, 18000 A/h, 44 hours power reserve
  • professionally serviced in 09/2025
  • -15 sec/d / 320°

BOX & PAPERS:

  • GOLDAMMER certificate of authenticity & service documentation card
  • GOLDAMMER box

GOLDAMMER REFERENCE: #1151

Omega

Few watchmakers have a résumé as storied — or as proudly worn — as Omega. Since 1848, the maison has been at the center of history, science, sport, and style. From lunar landings to Olympic games, from deep-sea dives to Bond films, Omega watches have accompanied the bold and the brilliant every step of the way.

But beyond the headlines lies something more intimate: a legacy of precision, purpose, and unmistakable design that makes Omega vintage watches some of the most collectible and meaningful timepieces ever made.

For collectors, few moments are as defining as 1969 — when the Speedmaster became the first watch worn on the Moon. But long before that, Omega was pushing boundaries: anti-magnetic cases in the 1950s Railmaster, the revolutionary dive-ready Seamaster 300, the effortlessly elegant Constellation, and the space-age Dynamic. Each one tells a story — of innovation, of function, of fearless design.

Omega vintage watches are where tool-watch utility meets mid-century beauty. Clean dials. Twisted lugs. Pie-pan textures. Lume-aged hands that glow with nostalgia. They’re not just instruments — they’re artifacts of a century in motion.

To wear an Omega is to wear a piece of collective memory. It’s for the collector who values performance, but also emotion. Someone who connects with history not just through words, but through the tick of a movement that once timed a mission, lit up a ballroom, or accompanied a dive into the unknown.

Omega doesn’t need embellishment. It’s trusted. Proven. Loved.

Because true greatness doesn’t announce itself — it leaves a legacy. And when that legacy is preserved in a finely aged case, beating with life decades later, it becomes something more:

A vintage watch that reminds you of where we’ve been — and dares you to keep going.

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Omega Cosmic 2485 Moonphase Jumbo 1947

€10.900

Classic vintage watch worn on a wrist above vintage watches and luxury watches on a desk.

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All GOLDAMMER watches are guaranteed authentic by our trusted watchmakers and ourselves. Certificate included!

Professional Servicing

All watches at GOLDAMMER are professionally serviced by our trusted watchmakers and are guaranteed to be in perfect condition.

Comprehensive Warranty

Our watches are covered by a one-year mechanical warranty. If anything goes wrong, please let us know immediately.

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We know you'll love your watch. If you don't, you can return it to GOLDAMMER within 14 days, no questions asked.

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We ship worldwide and insure your package via DHL Express and FedEx, free of charge. The buyer pays import taxes outside the EU.

Preserving Excellence

As most of our watches are around half a century old, they need to be treated with extra love and care and serviced every 4-5 years.


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