Omega Constellation - Steel - Cal. 505 - 1950's

$850 [Reserved]

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Basic Info

Ref. No. Cal. 505
Movement Automatic
Case material Steel
Bracelet material Steel
Year Circa 1950's
Condition 1 (mint)
Gender Men's watch/Unisex
Location United States, Connecticut, Greenwich
Price $850 [Negotiable]
Availability Available now


Movement Automatic
Movement/Caliber 505
Number of jewels 24


Case material Steel


Bracelet material Steel


Steel Omega Constellation automatic chronometre officially certified Cal. 505, 24 jewels, reference 2852, vintage wristwatch, circa 1950’s

A pristine stainless steel Constellation Omega automatic chronometre officially certified

The Ref.2852 was first introduced by Omega in the early 1950’s. Great attention to detail has been paid to the design of the watch. 35mm x 42mm to lug tips, original stainless steel snap-back case with inset gold Observatory medallion, stainless steel "beads of rice" bracelet number 12 style Omega, with signed Omega deployment clasp. Silvered dial, silver pie pan, applied rose gold indexes, rose gold Omega logo and name, rose gold star and luminous rose gold dauphine hands.
24Jewels caliber 505, s#15653111, triple signed. Incabloc jeweling to the balance.
Lightly patinated and with a creamy silvered finish, the dial is in lovely condition with no oxidation. The hands are excellent. The bezel has a flat polished finish and the case back is centered with the embossed Observatory medallion with light wear. The clean shows little wear and the crystal is good. Automatically wound, the watch is powered by an Omega calibre 505 with 24 jewels and precision regulation. The movement is in excellent conditions

The story of Omega started in 1848 with Louis Brandt when he opened a “Comptoir d’etablissement” a sales office for sub-contracted watch manufacture. In 1880, the brothers Louis Paul and Cesar Brandt set-up a modern watch production unit. In 1889, the company had a production of 100,000 units per year. The name of Omega only appeared in 1903. Omega has developed amazing movements such as the “Labrador” in 1885. In 1917, Omega provided watches to the British army and in 1918 to the American army. In 1957, the speedmaster professional was born and then selected by the NASA in 1965 as the official timekeeper. Today, Omega continues to demonstrate mechanical innovation and remain one of the most prominent brands in the world of watchmakers.

Technical details
Omega calibre 505 automatic movement, lever escapement, 24 jewels, 19,800 BPH, silvered dial, applied baton indexes with luminescent tips, luminescent Alpha shaped hands, centre seconds, stainless steel circular case with polished finish, flat bezel, the centre with embossed medaillon logo, Omega crystal case, dial, movement, crown and crystal signed

Diameter excluding winding crown: 35mm
Length including lugs: 42 mm



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