Precision with a capital "O"

Having closely examined two prominent representatives of the Omega family with automatic calibre, WatchJ tried to understand what the unique character of the Swiss brand is. To maintain the experimental integrity we have chosen as a junior, as one of the most expensive production models: steel Seamaster Diver 300M Co-Axial and Globemaster Co-Axial Master Chronometer Annual Calendar in pink gold.

Seamaster Diver 300m Co-Axial

Calibre: Omega 2500 Self-winding chronometer, Co-Axial Escapement movement with rhodium-plated finish. 
Power Reserve: 48 hours 

Domed scratch – resistant sapphire crystal with antireflective treatment on both sides 

Case: Steel
Case diameter: 41 mm 
Dial: Blue 

WATER RESISTANCE: 30 bar (300 metres/1000 feet) 

FEATURES: chronometer, date, helium escape valve, screw-in crown, unidirectional rotating bezel

Master Chronometer Annual Calendar

Calibre: Omega 8923 Self-winding chronometer, Co-Axial, Escapement movement with rhodium-plated finish.
Power reserve: 55 hours

Domed scratch - resistand sapphire crystal with anti-reflective treatment on both sides

Case: Gold Sedna 
Case diameter: 41mm
Dial: White/Blue

WATER RESISTANCE: 30 bar (300 metres/1000 feet)

FEATURES: annual calendar, anti-magnetic protection to 15000 gauss, decoration patterned with "Geneva waves"

A sea of stars 

Despite the obvious differences in appearance and positioning of product lines Seamaster and Сonstellation, a favorite watch brand of James Bond does not allow itself to stray too far from the proven image. Let specimens that adorned the hand of the chief spy of world cinema be available as single limited series, the figure of Agent 007 expresses to a certain degree the philosophy of the brand as a whole. 

The charm of both models builds on a combination of suppressed masculinity and chic technology. An absolute classics without a touch of antique, a spirit of competition, but with gentleman’s rules, the luxury within the bounds of good taste. Globemaster in rose gold case technically falls into the category of dress watches, but due to the multi-level pie-pan dial and fluted bezel it is not alien to sports design. Of course, the premium level of the product is not limited to the annual calendar. Manufacture caliber 8923, the work of which you can admire through the sapphire back cover, engraved signature of Сonstellation collection, gold pointers – the list can be long. 

Steel Seamaster Diver deserve the most sincere praise also. They are ready for serious underwater dives and thanks to the ceramic bezel and sapphire crystal glass ensure the scratch resistance of the front side. Yet, miracles do not happen. Let both models be fine, for some reason the one is much more expensive than the other is. Even in the absence of helium valve for decompression in Globemaster, premium Omega still indicates its superiority in regards to water resistance by the symbolic difference of 330 meters towards 300 for Seamaster. Similar picture is also with a power reserve of 55 and 48 hours, respectively. 


Listing general characteristics it is more logical to start with the relationship indicated right in the titles. Coaxial is a system with two escapement wheels instead of one and increased amount of gems to fight the friction. It provides Omega mechanisms with maximum accuracy. Beating in the heart of Seamaster Diver 300M Co-Axial automatic caliber 2500 is certified by the Swiss Official Chronometry Control Office COSC, and therefore its inaccuracy meets the standard -4/+6 seconds per day. In other words, even the junior model of the brand has an official status of a chronometer. 

In the case of Globemaster co-axial Master Chronometer Annual Calendar everything is more interesting. The title of Master Chronometer is assigned by the Federal Institute of Metrology METAS located near Bern. The intensity testing here is superior to even the COSC; moreover, the watch is subjected to testing already assembled.

All new Omega calibres, including 8923, resist magnetic radiation up to 15,000 Gauss. Although it is hard to imagine a life situation where your watch has this kind of load, an additional protection can never hurt. After all, this kind of damage is among the most difficult and unpleasant for the exact mechanics.