Vintage Omega Swiss Watch, Oversized Jumbo Case, Ref. 2505-5, Two-tone dial with minute track, Cal. 265 from 1947

This 1947 Omega Ref. 2505-5 is a superb example of post-war Swiss design, combining elegant proportions and excellent legibility in a rarely seen oversized 38,5 mm case—an exceptional size for its time. Even more compelling is its completely original two-tone dial, featuring a rare red numeral minute track, a subtle yet highly collectible detail that sets this piece apart.

Powered by the manual-wind Caliber 265, part of Omega’s revered 30mm movement family, this watch is as reliable as it is beautiful.

CASE:

Oversized 38,5 mm stainless steel case (without crown)

Reference: 2505-5

Original unpolished condition with strong edges and full lugs

Original Omega-signed crown

Classic long lugs and thin bezel offer excellent wrist presence

MOVEMENT:

Omega Caliber 265 – manual wind

15 jewels, robust and historically significant

Serial number: 11,592,222 (circa 1947)

Smooth winding, running strong

Omega’s legendary 30T2-based architecture

DIAL:

Original two-tone silver dial with circular cream center and contrasting chapter ring

Rare red numeral minute track

Gilt Arabic numerals and dauphine hands

Guilloché sub-seconds register at 6 o’clock

Beautiful aging and patina consistent with untouched vintage condition