Omega Seamaster Cosmic 2000 Ref.166.135 Cal.1012 38.0mm 1971

The Omega Seamaster Cosmic 2000 Ref. 166.135 perfectly captures the bold optimism of 1970s Swiss watchmaking, combining a sleek integrated design with the everyday practicality that made the Seamaster line legendary. Its beautifully preserved silver sunburst dial plays effortlessly with the light, framed by the distinctive integrated case that gives the watch a confident yet refined presence on the wrist. Beneath the surface beats the reliable Omega Cal.1012 automatic movement, a workhorse calibre renowned for its smooth operation and robust construction. For collectors seeking an authentic vintage Omega that effortlessly bridges sportiness and elegance, the Cosmic 2000 remains one of the most underrated gems of the era.

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.1012 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 sunburst dial in excellent vintage condition

• Slim steel sword hands with aged lume inserts and matching centre sweeping seconds hand

• Applied facet-edged baton hour indices with matching lume pips

• Original applied Omega logo and crisp original wording

• Date window at 3 o’clock with quickset feature

• Flat original Omega mineral crystal

CASE:

• Distinctive 1970s integrated bracelet press in Cosmic 2000 case

• 38.0mm Diameter (excluding crown) / 43.0mm Lug-to-lug / 10.0mm Thickness

• Professionally polished with all sharp edges intact

• Original Omega-signed crown at 3 o’clock

CASEBACK:

• Stainless steel caseback with etched Seamaster hippocampus

• Professionally polished to perfect vintage condition

• Comes with plastic protective sticker as shown

MOVEMENT:

• Omega Cal.1012 – Automatic

• 23 jewels / 42-hour power reserve / 28,800 vph

• Quickset date function

• Movement freshly serviced and in excellent condition

• Last serviced: May 2026

• Accuracy: XXs/day

BRACELET:

• Original Omega integrated 3-link 1198/195 stainless steel 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 2000

Year: 1971

Case Material: Stainless Steel

Reference: 166.135

Movement Serial: 33805290

Caliber: Omega Cal. 1012

Diameter: 38.0mm

Lug to lug: 43.0mm

Lug width: 23.0mm Integrated

Thickness: 10.0mm

Lume: Tritium

Strap: Original Omega 1198/195 steel bracelet

Box and papers: None

Accuracy: XXs/day

Movement type: Automatic

Crystal: Mineral

Crown: Original Omega-signed crown

Last service: May 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/SingPost

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