Omega Seamaster Cosmic Ref.166.035 Cal.752 35.0mm 1969

A sharp and elegant example of the late-60s Omega Seamaster Cosmic, featuring a clean and timeless silver sparkle dial housed in the distinctive one-piece case construction. This Reference 166.035 from 1969 is powered by the reliable and well-regarded Caliber 752 movement, offering a smooth date complication with semi-quickset functionality.

In addition, this timepiece comes freshly serviced with all parts laid out by our professional watchmaker for all to see in the images above. Little to no other dealers do this and it’s a testament to full transparency here at Montre D’or. With the Cal.752 inside running excellently as shown in the timegrapher reading above, just like it was when it left the factory nearly half a century ago.

DIAL:

• Original silver sparkle dial in excellent vintage condition

• Slim baton hands with tritium lume

• Applied hour indices with matching tritium lume plots

• Original Omega logo and crisp original wording

• Domed acrylic crystal, Omega-signed at center

CASE:

• Classic monocoque (one-piece) Cosmic case design

• 35.0mm Diameter (excluding crown) / 40.5mm Lug-to-lug / 10.5mm Thickness

• Professionally polished with all sharp edges intact

• Original Omega-signed crown at 3 o’clock

CASEBACK:

• Monocoque (front-loading) caseback

• Professionally polished to perfect vintage condition

• Comes with plastic protective sticker as shown

MOVEMENT:

• Omega Caliber 752 – Automatic with day-date and quickset date (Set by pulling crown to 3rd position to hop date by one / ensure to avoid 9pm-3am / turn 24 hours to hope the day of the week)

• 24 Jewels / 50hr Power Reserve / 19,800 bph

• Movement freshly serviced and in excellent condition

• Last serviced: April 2026

• Accuracy: +1.0s/day

BRACELET:

• Omega 2058 stainless steel milanese bracelet, professionally polished

• Brushed with sharp edges intact, fits between 16-18cm wrists via microadjust holes

AFTERCARE PACKAGE:

• Comes with a black presentation box + silica gel

• Complimentary PolyWatch crystal polishing kit (for acrylic crystal)

• 6-month warranty (covers non-user damage only)

• Guarantee Certificate with full service details included

• Access to our exclusive post-warranty repair services

• 7-day return policy for peace of mind

SPECIFICS:

Maker: Omega

Model: Seamaster Cosmic

Year: 1969

Case Material: Stainless Steel

Reference: 166.035

Movement Serial: 31942394

Caliber: 565

Diameter: 35.0mm

Lug to lug: 40.5mm

Lug width: 18mm

Thickness: 10.5mm

Lume: Tritium

Strap: Stainless steel bracelet

Box and papers: No

Accuracy: +1.0s/day

Movement type: Automatic

Crystal: Acrylic (Omega-signed)

Crown: Original Omega-signed

Last service: April 2026

Free express tracked shipping with signature upon delivery. Delivery within Singapore in 1-2 working days. International shipping may take 2–12 working days depending on destination and will be shipped via FedEx/UPS/Aramex

Do note respective custom duties might apply which includes the recent US tariffs and are the buyer's responsibility.

Do note that for US bound shipments the PolyWatch polishing kit will not be included in order to mitigate customs delay due to new customs requirements

Countries that we do not ship to: Afghanistan, Belarus, the Central African Republic, Chad, Cuba, the Democratic Republic of the Congo, Eritrea, Iran, Iraq, Lebanon, Libya, North Korea, Oman, Pakistan, Russia, Somalia, South Sudan, Syria, Ukraine and the Crimea, Donetsk, and Luhansk regions of Ukraine.

This is a vintage timepiece and water resistance is not guaranteed. Please avoid contact with water or moisture. Store the watch with dry tissue or silica gel to preserve its condition. We are not liable for water damage post-purchase.