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Posted

Hello,

 

I found a 50’s  Longines automatic system repair manual. In this manual the recommend using Chronax oil grade H, HHH etc for oiling parts.

Chronax oil and this grade don’t exist anymore, is there a chart giving corresponding modern oil grade ?

Thank you,

George

Posted

Hello,

There's a sticky thread about oils in the Tools part of the forum.. the oils listed there are suitable for vintage watches as well as modern watches.

Posted
3 hours ago, GeoMontreal said:

Longines automatic system repair manual

is this a specific caliber or a generalized manual on repairing automatic watches?

Posted

Thank you for the answer, I’ll refer to Moebius documents. Repairs manual is for Longines 19A , but also refers to 22 A regarding oiling procedure .

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