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Jaeger-LeCoultre

Simple, my friend.

 


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.

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