Simple, my friend.
By: amanico : February 20th, 2012-13:53
The Cal 889 was introduced in ... 1894 or 1985, 8 or 7 years before the Master 1000 Hours.... So, since 1992, the Cal 889, now 899, is submitted to the 1 000 Hours Control battery of tests. Simple, isn't it? Best, Stefan. Nicolas.