1969 Omega Constellation Automatic Watch 168.045 Day/Date 36mm ALL S.S. Cal. 751 24 Jewels ADJ.

Watch Overview

Offered here is a collectible vintage wristwatch: an Omega Constellation automatic wristwatch, reference 168.045, dating to 1969 based on the movement serial number.

It is powered by the Omega Caliber 751 automatic movement, a chronometer-certified caliber featuring 24 jewels, a sweep seconds hand, and a day-date display. This Swiss-made timepiece is adjusted to five positions and temperature, operates at a frequency of 19,800 vibrations per hour, and offers an approximate power reserve of 50 hours.

The watch features a silver-tone dial that has developed an attractive vintage patina over time. The dial is accented by applied baton hour markers, matching hands, and a day-date window positioned at 3 o’clock.

Housed in a 36 mm stainless steel tonneau-style case with a textured fixed bezel and signed Omega crown. It is fitted with a stainless steel bracelet, complementing the watch’s integrated design. The case back retains the iconic Constellation Observatory medallion, a hallmark of the model.

Fully inspected and authenticated, the watch remains in very good vintage condition consistent with its age and is ready to wear and enjoy.

Product Details

General Specifications

• Brand: Omega
• Type: Wristwatch
• Model: Constellation
• Reference: 168.045
• Year / Era: 1969 - Vintage
• Gender: Men's
• Country of Manufacture: Switzerland

Dial & Display

• Display: Analog
• Color: Silver-tone
• Features: Baton hour markers, minute/second track, sweep-second hand, day/date indicator

Movement

• Type: Self-winding
• Caliber: Omega 751
• Jewels: 24
• Movement Functions:
  • Sweep seconds
  • Certified Swiss chronometer (COSC)
  • Adjusted for accuracy in five positions and temperature
  • Day/date window with quick-set
• Power Reserve: Approx. 50 hours
• Frequency: 19,800 vph

Case & Band

• Material: Stainless Steel
• Case Shape: Tonneau/Barrel
• Bezel: Fixed, textured
• Crystal: Acrylic
• Back: Screw-back
• Crown: Signed Push-pull
• Water Resistance: -
• Band Type: Stainless steel bracelet
• Max Wrist Size: Approx. 7 1/2" (18.4cm)
• Case Back Markings: Omega Observatory Emblem - Omega Watch Co. Fab. Suisse Swiss Made Stainless Steel 168.045-568.845

Case Measurements (mm)

• Case Size: 36
• Case Diameter w/Crown: 37.8
• Case Lug to Lug: 40.5
• Case Thickness: 10
• Lug Width: -
• Band Width: 26

Additional Info

• Box & Papers: NO
• Condition: The watch is in good condition, showing signs of wear consistent with age and use
• Extras: This timepiece has been fully inspected and authenticated by our in-house watchmaker, confirming that it runs accurately.

History & Legacy of Omega

Omega is a Swiss luxury watchmaker known for producing high-quality and prestigious timepieces. The company was founded in 1848 by Louis Brandt in La Chaux-de-Fonds, Switzerland; Louis Brandt started as a watchmaker, and he produced key-wound pocket watches. Originally, it was called "Louis Brandt et Frère" and they primarily produced pocket watches and it was until 1903 that the company officially adopted the name "Omega."

Throughout its history, Omega has continued to innovate and produce high-quality timepieces. Today, it remains one of the most prestigious and respected Swiss watchmakers, offering a diverse range of collections that cater to various lifestyles and tastes. Today, Omega continues to be a prominent and highly regarded Swiss luxury watch brand.

Omega Constellation: The Omega Constellation was introduced in 1952 as a chronometer-certified collection, following the success of the 1948 Centenary, Omega’s first automatic chronometer. Known for its precision, the Constellation featured automatic movements and the signature observatory medallion caseback. In 1970, Omega launched the Constellation Electroquartz, embracing the quartz revolution. Today, the Constellation remains a symbol of Omega’s commitment to accuracy, innovation, and timeless design.

About Second Hand Horology

At SECOND HAND HOROLOGY, we offer a curated selection of watches ranging from vintage to modern, including both brand-new and pre-owned timepieces. We’re committed to quality, accuracy, and integrity. Our listings feature:

Professional, unedited photography and clear, transparent descriptions. Every watch is thoroughly inspected and securely packaged to ensure a confident, seamless buying experience.

We also warmly invite you to visit our physical shop and explore the collection in person.

Contact Us

We appreciate you checking out our listing! Don’t hesitate to reach out with questions, offers, or just to talk watches — we love what we do and enjoy connecting with fellow enthusiasts.

Thank you for your business—we truly appreciate your support and look forward to serving you again in the future!

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