zOwie Omega Discussion Forum

Hi Felix

I don't know how many people have worn daily their co axial limited deville with the 2500a. Also Omega sent a letter to coaxial owners to tell them that the service interval was reduced to 6-8 years instead of 10.

When it comes about absolute robusteness in the harshest conditions, the coaxial is not in position to compete wit hthe rolex 303x/313x series of movements.
Dimensions of the coaxial
diameter: 25.6mm
height: 3.9mm

Dimensions of the 3135
diameter: 28.5mm
height: 6mm

The most robust winding system being the jeweled pivot system found in the rolex 3135 and proven since a very long time with the calibre 1030.
The eta2892-a2 calibre on which is based the coaxial was never meant and designed for extreme or harsh conditions. The eta2824-2 on the other hand was used and is used in number of military watches because it is a movement which was well suited for military & diving applications.
How ever the ball bearing system is not supporting very violent shocks and can have a tendancy to unscrew itself if one plays golf with a violent or strong swing or tennis.
The coax 2500c is too new to be judged as fully reliable or robust. Generally thin movements are more suited to watches than tool watches or beaters. For your personnal information Rolex manufactures the largest and the thickest movements on the market, because the firm values robustness and shock resistance over the very long run.

just my two cents

regards

georges