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1970 Omega Constellation Vintage Mens Calendar Day Date Watch - Stainless Steel & 18K White Gold



PRISTINE Merchandise is in “like new” condition. There are no signs of wear or any other visible imperfections.  EXCELLENT Merchandise is in exceptionally good condition with very little wear. Any imperfections are described in detail.  VERY GOOD: Merchandise is in very good condition for its age. Older items may exhibit very light patina and wear relative to the age of the product, and more contemporary items will be just short of “excellent”. GOOD: Merchandise is in good condition and typically will appear mildly to moderately used. There may be some surface scratches and/or other imperfections. Older items may exhibit patina and wear related to their age. Please review the item listing for specific details regarding condition.


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Today's offering showcases this very pleasing Constellation with caliber 751 movement. It is one of the relatively few vintage automatic Constellation models to feature both day and date functions. The case is steel with its original white gold bezel. Omega's use of steel, white gold, silver, and black give it a cool monochrome look. It is original down to the dial, hands, crown, and even signed Omega crystal! The dial is original. The case is in better than near mint condition with a crisp Observatory logo and lines. The officially certified chronometer movement has been freshly cleaned and oiled and is running extremely accurately.


Model: Constellation, Ref. 168.045 - 368.845

No: 29,461,093

Functions: Chronometer Time, Quick-Set Date, Day, Automatic, Sweep Seconds

Dial: Brushed silver, signed Omega and Constellation, hand-riveted steel markers topped with black, original, better than excellent condition with fairly light aging of the clear lacquer near the markers

Hands: Original, steel luminous and blackened batons

Movement type: Caliber 751, 24 ruby jewels, shock resistant, micrometer regulator, chronometer certified

Bracelet: Original, ref. 1155/146, sized to fit a wrist up to just over 7 3/4 inches, adjustable, better than near mint

Crystal type: Signed Omega, acrylic, excellent condition

Return Policy: 7 days from the day it is received

SKU: 21-179199
Accompanied by: Omega
Bracelet/Strap: Stainless Steel
Color: Silver
Watch Movement: Automatic
Country of Origin: Switzerland
Authenticity Details: Omega
Case Dimensions (in mm): 36mm wide (excluding crown), 41mm long lug tip-to-tip
Primary Material: Stainless Steel & 18K White Gold

Domestic and international shipping is by FedEx. All shipments are fully insured.

Please contact Portero Customer Care Department for a return authorization, and ship back item within 7 days of receipt. Items must be properly packaged in comparable box, and in unworn condition.


omega logo


When Neil Armstrong took his first step onto the moon proclaiming, "This is one small step for man, one giant leap for mankind," he leapt with the first and only timepiece to land on the moon, Omega.

In La Chaux-de-Fonds, Switzerland 1848, Louis Brandt founded Omega with the foundation of providing innovative and well-crafted timepieces. Now, Omega stands as the official timekeeper of 21 Olympic Games and the official chronometer for NASA.

Omega has been adored by many leading public figures including President John F. Kennedy and Prince William. The Omega brand has also been sponsored by celebrities and athletes such as George Clooney, Daniel Craig, Nicole Kidman, and Michael Phelps.

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