Omega Maison 18k Yellow Gold Bezel Ref.166.0285 Cal.1110 35.0mm 1989

A beautiful example of the Omega De Ville Maison Ref.166.0285, this model represents the understated luxury and precision Swiss craftsmanship of the mid-1980s. Produced in 1989, it showcases clean, timeless proportions and a slim profile that sits effortlessly on the wrist. The contrast between the brushed steel case and warm 18k gold bezel gives the watch a distinctive yet versatile aesthetic, while the original crown and solid gold hands further elevate its collectability. A highly elegant and increasingly difficult piece to find in this condition.

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 Omega Cal.1110 inside running excellently as shown in the timegrapher reading above, just like it was when it left the factory nearly four decades ago.

DIAL:

• Original white sector dial with gold roman numerals in excellent condition

• Solid gold pencil shaped hands with no lume

• Applied hour indices with matching polished gold finish

• Applied Omega logo and original wording

• Date window at 3 o’clock with quickset feature

• Domed haeselite crystal, Omega-signed at center

CASE:

• Classic round dress case with solid 18k solid gold bezel

• 35mm Diameter (excluding crown) / 42.0mm Lug-to-lug / 8.0mm Thickness

• Professionally polished with all sharp edges intact

• Original Omega-signed crown at 3 o’clock

CASEBACK:

• Original Snap-On caseback with Maison Fondee en 1848 stamped on the back

• Comes with serial number printed on the inside, an uncommon but not unseen practice for Omegas that utilised ETA based movements in the late 80s

• Professionally polished to perfect vintage condition

• Comes with plastic protective sticker as shown

MOVEMENT:

• Omega Cal. 1110 – Automatic movement

• 21 jewels / ~42-hour power reserve / 28,800 bph

• Quickset date function (via crown operation in second position, ensure to avoid 9pm-3am timing)

• Movement freshly serviced and in excellent condition

• Last serviced: February 2026

• Accuracy: +2.0s/day

STRAP:

• Handmade crocodile leather strap, 18mm lug width

• Aftermarket Omega stainless steel buckle

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: Speedmast Classic Heritage / “Maison Fondee”

Year: 1989

Case Material: Stainless Steel with Solid 18k Gold Bezel

Reference: 166.0285

Movement Serial: 51624706

Caliber: 1110

Diameter: 35.0mm

Lug to lug: 42.0mm

Lug width: 18mm

Thickness: 8.0mm

Lume: None

Strap: Handmade Ostrich Leather Strap

Box and papers: Nil

Accuracy: +2.0s/day

Movement type: Automatic

Crystal: Haeselite

Crown: Original Omega Signed

Last service: February 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: Algeria, Nepal, Pakistan, Russia, Vietnam, Iran

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.