Stunning Vintage Gents Omega Seamaster Cosmic 2000 "BIG Crown" Divers Wristwatch c.1974, Calibre 1012, Bakelite Bezel.

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Stunning Vintage Gents Omega Seamaster Cosmic 2000 "BIG Crown" Divers Wristwatch.

Case Ref: 166.137

Dating this Watch

Using the Serial Numbers, on the movement, which are within the 38,500,000 range, we can date this Watch to 1974.


Top quality 23 Jewels Calibre 1012 Movement, with Quickset Date and Hacking Seconds.

Unscrew and pull the Big Crown out and move it to Position 2 to use the Quickset Date. Pull the Crown out fully to activate the Hacking Seconds and Change the Time.


*Fully Professionally Serviced by us at Gunga Din Watches*

The Movement is wonderful and Clean whilst ticking away strongly and keeping Excellent time having been FULLY PROFESSIONALLY serviced by our fantastic in-house Watchmaker. You will receive a copy of the Service receipt please keep this for your records/warranty.

Covered by our 3 month Warranty, which is free will all purchases that have been serviced by us.


Awesome Condition Black Divers Dial.



Swiss Made

The Dial is in absolutely Fantastic Vintage Condition.

An absolute Stunner!!

The Luminous Material glows faintly under a charge.

Marked Swiss Made.

This is the original Untouched 47 or so year old Dial that left the Omega Factory back in 1974 and I am a real fan of these Unmolested Dials, especially when they've survived in this sort of Order.


Case & Bezel

Top Quality Stainless Steel Case.

The Case is in very good condition for its age and nature, with no real age related marks and some very minor Scratches to the common wear area, which is the nature of the beast, but nothing overly major! 

The case edges are still nice and sharp.

Wonderful Bi-Directional Bakelite Bezel, is in very good order with some age related marks that can only really be seen under very close inspection, a little wear near the 50 but its all purely academic, for its nature it is in very good nick.

Case Reference:166.137

Case approx. measures in at:
Diameter: 38.1mm
Diameter with Crown: 43.2mm
End of lug to lug: 43.6mm
Lug Spacing: 9mm (Integrated Bracelet)

This Case was rated at 60m back in the Day, it is now a Vintage Timepiece, it has NOT been tested for Water Resistance and if you wish to Submerge this Watch, you will need to have the Watch Professionally Resealed before doing so!!

Hands, Crystal and Crown

Original Hands are in good nick, they have been refilled as part of the Service as both were missing Infill.

New Crystal has been fitted as part of Service.

Original Omega Big Crown is in good order. It screws tightly to the case.


On its Original 1198/195 Omega Integrated Bracelet that fits approx. 7.5 inches Wrist, with no Spare links. The Bracelet has benefitted from a Full Thorough Clean, Re Brushed to give it a cracking look and New Spring Bars.

The Bracelet is now in very nice condition, there are 2 links in common wear area that have been dinged but to be expected of a 47 year old Bracelet.