Chase Hattan Watches has dated this piece to the 1960s.
This 1966 Omega Seamaster 600 reference 136.
Just serviced and performing exceptionally well, this is a highly collectible and increasingly sought-after vintage Seamaster configuration.

Presented in original, unpolished condition with the possibility that the seconds hand may be a later service replacement. Offered with Omega box, our 12-month guarantee, and insured next-day shipping or collection from Mayfair, London.

Key Details
Reference: 136.00011
Year: 1966 (confirmed by serial number)
Case Size: 35mm
Case Material: Stainless steel
Dial: Rare original black dial with baton hour markers
Crystal: Plexiglass – excellent condition

Movement: Manual wind – Omega Calibre 661 – freshly serviced
Crown: Signed Omega
Case Back: Signed Omega Seamaster
Condition
Excellent original condition. Dial and plexiglass in remarkable shape for a watch approaching 60 years old. Case left unpolished to preserve originality. Strap is a new generic black leather with an Omega steel buckle.

Our View
The combination of a rare black dial, untouched case, and fresh service makes this Seamaster 600 a superb investment-grade vintage Omega. With such original examples becoming increasingly scarce — especially with a black dial — this is a refined, understated, and stylish vintage piece that punches well above its price point.
What’s Included
? Omega presentation box
? 12-month mechanical guarantee
? Insured next-day delivery (or Mayfair collection)
Chase Hattan Watches has dated this piece to the 1960s.
Specialists in vintage, military and luxury watches
You can view the stock and full dealer information on the Chase Hattan Watches Profile Page