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Late‑1960s Seamaster Cosmic in gold‑plated form
This Seamaster Cosmic Automatic (ref. 166.023) dates to circa 1968 and wears the compact proportions typical of Omega’s late‑1960s design language. The rounded, monocoque case and 33 mm diameter pair with a silver sunburst crosshair dial and applied baton markers for a restrained dress‑sport presence; the gold‑plated finish reinforces the era’s aesthetic. Power comes from Omega’s calibre 565, a 24‑jewel automatic with quick‑set date that represents the manufacturer’s solid, everyday movements of the period. Fully serviced in March 2026, the watch offers an authentic period character suited to collectors who appreciate original design and reliable vintage mechanics.
Watch dossier
Important details, without the clutter.
01Specifications+
- Brand / model
- Omega Omega Seamaster Cosmic Automatic Ref. 166.023
- Reference
- 166.023
- Estimated production
- circa 1968
- Case material
- Gold plated
- Case diameter
- 33 mm
- Lug-to-lug
- 37 mm
- Thickness
- 10 mm
- Dial
- Original silver sunburst crosshair dial with applied baton indexes and date at 3
- Crystal
- Acrylic (period-correct)
- Crown
- Signed
- Strap / bracelet
- Calf leather strap
- Movement
- Automatic, self-winding mechanical with date
- Caliber
- Omega 565
- Jewels
- 24
- Movement serial
- 2720••••
02Service & provenance+
Last serviced: 06 March 2026
The service includes the following operations: • Disassembly of the watch • Movement overhaul: dismantling • Cleaning, reassembly and lubrication • Use of Moebius synthetic oils • Ultrasonic cleaning of the case • Reassembly of the case and the watch • Final technical and aesthetic checks
03Delivery & returns+
Current store policies apply to this purchase.
Included with the watch