1968 Omega Constellation Day-Date Cal. 751 Automatic Chronometer
$1,699.00
WHY THIS WATCH MATTERS
There is a particular confidence to a late-1960s Omega Constellation: restrained proportions, chronometer-grade engineering and design details that reward close inspection rather than attention-seeking styling. This example carries that identity clearly through its warm silver-champagne dial, applied gold markers, gold-capped case and Observatory medallion.
Inside is Omega caliber 751, a 24-jewel automatic chronometer movement. Movement serial 27,652,386 places the watch around 1968, putting it squarely in one of the classic periods of vintage Constellation production.
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Read how two barely usable auction photographs led to an abandoned safe-deposit-box find, an Omega Constellation, and the decision to preserve its original signed crystal.
THE HARD DETAILS
| Maker | Omega |
| Model | Constellation Day-Date |
| Reference | Probable CD 168.016 — not yet confirmed |
| Movement Serial | 27,652,386 |
| Production | Circa 1968 |
| Movement | Omega caliber 751 automatic chronometer |
| Jewels | 24 |
| Frequency | 19,800 vph |
| Functions | Hours, minutes, central seconds, day, date |
| Case | Gold-capped over stainless steel |
| Crystal | Original Omega acrylic/Hesalite with magnifier |
| Caseback | Stainless steel with gold Observatory medallion |
| Strap | Aftermarket brown leather |
| Country | Switzerland |
| Water Resistance | Not pressure tested |
| Current Rate | Not yet recorded |
OPERATING CONDITION
The watch is running, time setting works, and the day/date mechanism is operating. The caliber 751 has been opened for inspection and photography. Final rate, amplitude, beat error and power-reserve figures have not yet been recorded, so no performance number is being inferred from factory specifications.
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WHAT WAS DONE
The restoration approach was preservation rather than cosmetic reinvention. The watch was cleaned, lightly lubricated where needed, and the original Omega-signed crystal was carefully restored rather than replaced.
Work performed
• Watch cleaned
• Movement inspected
• Light lubrication as needed
• Original Omega crystal restored
Intentionally preserved
• No parts replaced
• Dial and hands left cosmetically untouched
• No machine polishing
CONDITION & ORIGINALITY
This is an honest vintage Omega Constellation. The dial shows spotting, marks and surface wear. The original acrylic crystal has been restored but retains age-related imperfections. The case and lugs show scratches from use, the gold-capped surfaces show wear, and the Observatory medallion carries visible age.
The caliber 751 movement and dial/case configuration are consistent with a late-1960s Constellation Day-Date. The inside caseback is correctly Omega-signed and carries old service marks. Prior service history is unknown, so untouched originality is not claimed.
THE STORY OF THIS WATCH
This Constellation was found through an online auction, the kind of setting where a watch can be easy to overlook when it is presented among unrelated objects. Under the wear was a serious piece of Omega history: a chronometer-grade day-date movement, an original signed crystal worth saving and the Observatory medallion that defined the Constellation line for generations.
The goal was not to erase nearly sixty years of use. It was to clean what needed cleaning, preserve the original details that remained and let the watch continue forward without pretending it had never been worn.
REFERENCE & MODEL HISTORY
Omega caliber 751 belongs to the late-1960s family of automatic chronometer movements that brought day-date practicality into the Constellation collection. Straight-lug, gold-capped Day-Date Constellations using caliber 751 are strongly associated with reference CD 168.016.
This watch fits that configuration closely, but the inside caseback reference is not legible enough to present CD 168.016 as confirmed. Until that number can be documented directly, the reference remains a probable identification.
ABOUT THE BRAND
Omega introduced the Constellation in 1952 as its series-produced chronometer collection. The Observatory medallion and eight-star motif became defining signatures of the line, linking the watches to Omega precision-record and observatory-testing heritage. By the late 1960s, Constellation models combined that chronometer identity with automatic winding and practical calendar functions while retaining the restrained architecture collectors still associate with the line today.
FOUND DETAILS
Source: Online auction
Approx. Production: Circa 1968
Movement Serial: 27,652,386
Working Reference: Probable CD 168.016
Inside Caseback: Omega Watch Co / FAB. SUISSE / SWISS MADE / STAINLESS STEEL
WHAT COMES WITH THE WATCH
• The watch shown
• Fitted aftermarket brown leather strap
• No original box or papers documented
A NOTE ON VINTAGE
Vintage mechanical watches carry decades of ownership, wear and service history. The photographs are part of the condition description. Water resistance should not be assumed without a pressure test, and mechanical performance can vary with position, state of wind, temperature and service condition.
PHOTOGRAPHED PURELY. SOLD HONESTLY.
These photographs are intended to show the watch as accurately as possible—the wear, the patina, the imperfections, and the details that matter. If there is something you want to see more closely before buying, ask.
