Omega's universal users' manual is a useful handbook for those interested in the specifications, operating instructions, precision tolerances and other information specific to Omega calibres.
The publication covers all current Omega calibres, canvasses various other special watch features such as helium valves and bezels and even details the COSC process under which all Omega mechanical chronometers are subjected.
It also works as a pre-purchase companion for Omega enthusiasts who wish to weigh up the features of different Omega models.
