Omega Seamaster Cosmic 2000 Ref.166.135 Cal.1012 38.5mm 1971

Soft reflections travel across the silver satin dial, set within the Cosmic 2000’s wide, modernist steel profile. Applied markers and aged tritium accents add texture without disturbing the dial’s calm, balanced appearance. Its high-beat Cal.1012 completes a distinctive expression of Omega’s early seventies design.

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 satin dial in excellent vintage condition
• Pencil hands with tritium lume inserts
• Applied hour indices with matching tritium lume plots
• Original Applied Omega logo and crisp original wording
• Date window at 3 o’clock with quickset feature
• Flat mineral crystal

CASE:

• Distinctive broad Cosmic 2000 case with a sculpted seventies profile
• 38.5mm Diameter (excluding crown)/ 44.0mm Lug-to-lug / 10.5mm Thickness
• Professionally polished with all sharp edges intact
• Original Omega-signed crown at 3 o’clock

CASEBACK:

• Press-in Cosmic 2000 case assembly requiring the appropriate opening tool
• Professionally polished to perfect vintage condition
• Comes with plastic protective sticker as shown

MOVEMENT:

• Omega Cal.1012 – Automatic high-beat movement
• 23 jewels / 42.0-hour power reserve / 28,800 BPH
• Quickset date function via the crown; avoid changing the date between approximately 9pm and 3am
• Movement freshly serviced and in excellent condition

BRACELET:

• Original Omega 1198/195 stainless steel oyster-style bracelet, professionally polished
• Brushed with sharp edges intact, fits between 16-19cm wrists via microadjust holes

AFTERCARE PACKAGE:

• Comes with a black presentation box + silica gel
• Complimentary PolyWatch crystal polishing kit (for watches with acrylic crystal only)
• 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: 33805419

Caliber: 1012

Diameter: 38.5mm

Lug to lug: 44.0mm

Lug width: 23.5mm

Thickness: 10.5mm

Lume: Tritium

Strap: Handmade leather strap

Box and papers: No original box or papers; Montre D’or black presentation box + Guarantee Certificate included

Accuracy: ~0s/day

Movement type: Automatic high-beat

Crystal: Flat mineral crystal

Crown: Original Omega-signed crown at 3 o’clock

Last service: September 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 and South America bound shipments the PolyWatch polishing kit will not be included in order to mitigate customs delay due to 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, Israel, 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.