Omega Seamaster Ref.166.010 Cal.565 35.0mm 1966

This beautifully preserved Omega Seamaster Chronometer Certified Ref. 166.010 is housed in a 35.0mm stainless steel case with a silver patina satin dial, coming from its natural patina with time, and polished dauphine hands with black inserts. A timeless, understated dress watch that captures the elegance of vintage Swiss watchmaking.

In addition, this timepiece comes freshly serviced with all parts laid out by our professional watchmaker for all to see in 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.565 movement in this Omega Seamaster 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 patina satin dial from natural age

• Applied Omega logo and clean, crisp “Omega Automatic” text

• Polished dauphine hands with black inserts and applied hour markers

• Minute track with discreet printed indices

CASE:

• Stainless steel case in excellent condition, professionally polished while retaining sharp edges

• Beautiful contrasting brushed and polished curved edges

• 35.0 mm (without crown) / 42.0 mm lug-to-lug / 12.0 mm thickness

• Reference: 166.010

MOVEMENT:

• Omega Caliber 565 – Automatic

• 24 jewels / 50Hr power reserve / 19,800 bph

• Semi-quickset date function (advance date by pulling crown from 2nd to 3rd position, ensure to avoid 9pm-3am when doing so)

• Freshly serviced: December 2025

• Accuracy: +1s/day

• Movement Serial: 24781188

STRAP & BUCKLE:

• Handmade Black Crocodile leather strap, 18.0mm lug width

• Aftermarket stainless steel Omega signed buckle

AFTERCARE PACKAGE:

• Comes with a black wooden 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

Year: 1966

Case Material: Stainless Steel

Reference: 166.010

Movement Serial: 24781188

Caliber: Cal.565

Diameter: 35.0mm

Lug to lug: 42.0mm

Lug width: 18.0mm

Thickness: 12.0mm

Lume: NIL

Strap: Handmade Black Crocodile leather

Box and papers: NIL, Wood Presentation Box included

Accuracy: +1s/day

Movement type: Automatic

Crystal: Original Omega-signed acrylic

Crown: Original Omega-signed

Last service: December 2025

Free tracked shipping via SingPost. Delivery within Singapore in 1-2 working days. International shipping may take 4–16 working days depending on destination. Do note respective custom duties might apply which includes the recent US tariffs.

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.