In the truth, there is a no such thing like shows stop watch. The word the stop watch were expropris merrily by the Swiss industry of watch to support the precision, the quality and the longevity of the Swiss product.
Thus, the Omegas of quality which carry the stop watch of word are simply movements of outfall of lever which are of such a quality and precision that they answer the criteria established under the standard of the OIN 3159.
The Swiss watches of stop watch of today are examined during fifteen days, in five positions, at the three temperatures different in a center from Stop watches of Swiss Official Control. Each watch must at least show the second averages of the rate of the day a of-4/+6.
In the apogee of the constellation of Omega, movements were examined by the watches independent of of the Walk of the official ones of control of offices (B.O.s). The standard required was then a rate of the average day in five positions of -1/+10 seconds.
With true stop watch describes really the outfall of a movement of utmost precision. Indeed, the word refers to the outfall sensitive and precise of strongly has – and not with the whole movement. The outfalls of stop watch are of such a delicacy and exactitude that they would not be appropriate for the rough wrist watches of today or indeed of the Fifties and the 60s.