So, working fine and fogging up? Why go through all these troubles to return to sts? There is a problem with a seal. Ask sts to recommend a watch maker in your country , which they might know, have him exchange the seal and pressure test without the mvmt. Should be easy and trouble free for you. If special seals are needed, sts can ship the seals and the work can be done locally . No customs, no nothing. If sts missed something during your service, they can pay the local watchmaker direct .no headaches . Kind regards. Achim
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