1975 Omega Constelation Automatic Watch 1660241 36mm ALL S.S. Original Bracelet - Cal. 1012 23 Jewels

Watch Overview

Offered here is a collectible vintage wristwatch: an Omega Constellation automatic watch, reference 1660241, dating to approximately 1975 based on the movement serial number.

It is powered by the original Omega Caliber 1012 self-winding movement. This Swiss-made movement features 23 jewels, a sweep seconds hand, and a date display with quick-set. It operates at a frequency of 28,800 vibrations per hour, and offers an approximate power reserve of 42 hours.

The watch features a silver-tone dial (showing some patina and age) accented by applied baton hour markers, a printed minute/seconds track, matching hands, and a date window positioned at 3 o’clock.

It is housed in a 36mm round stainless steel case. The watch features a fixed bezel, the original signed crown, and it is fitted with its original Omega stainless steel bracelet, complementing the watch’s distinctive integrated design. The case back retains the iconic Constellation Observatory medallion.

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: 1660241
• Year / Era: 1975 - 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, date indicator

Movement

• Type: Self-winding
• Caliber: Omega 1012
• Jewels: 23
• Movement Functions:
  • Sweep seconds
  • Date calendar with quick-set
  • Movement SN 39000804
• Power Reserve: Approx. 42 hours
• Frequency: 28,800 vph

Case & Band

• Material: Stainless Steel
• Case Shape: Round
• Bezel: Fixed, smooth
• Crystal: Acrylic
• Back: Screw-back
• Crown: Signed Push-pull
• Band Type: Original stainless steel bracelet
• Max Wrist Size: Approx. 7 1/2" (19.1cm)
• Case Back Markings: Omega Observatory Emblem - Acier Inoxydable - Omega Watch Co. 1660241 3660852

Case Measurements (mm)

• Case Size: 36
• Case Diameter w/Crown: 37.5
• Case Lug to Lug: 41
• Case Thickness: 9.7
• Lug Width: -
• Band Width: 21.8

Additional Info

• Box & Papers: NO
• Condition: The watch is in good condition, showing signs of wear consistent with age and use
• Extras: Fully inspected and authenticated by our in-house watchmaker. It is running accurately and ready to use.

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!

WA-6658