That’s a bold statement, but Omega has prepared a lot to back that up. They have submitted the Globemaster to an entirely new kind of certification that they believe goes well beyond that of COSC. Dubbed “METAS,” there are eight steps to being approved as “Master Chronometer” – seven of which apply to the entire watch and one to the movement.
These steps are as follows:
1. The function of the movement during exposure to a magnetic field of 15,000 gauss.
2. The deviation of the running time of the watch in six positions.
3. The deviation of the running time of the watch between 0 and 2/3 power reserve.
4. The function of the watch during exposure to a magnetic field of 15,000 gauss.
5. The deviation of the average daily precision of the watch after exposure to a magnetic field of 15,000 gauss.
6. The average daily precision of the watch in tests replicating daily wearing conditions (six positions, two temperatures.)
7. The power reserve of the watch (autonomy – functioning without winding.)
8. The water resistance of the watch (tested in water.)