OMG, that´s a beautiful piece! I do hope that they won´t ruin it in Bienne
. It´s a great risk for that involved, none the less how detailed and careful you´ve been in your instruction before it went in. I.e a polish of the case is irreversible, and it looks fantastic now with all its patina and wearmarks. NB this is my opinion. You may think that it´ll benefit from a polish, and it´s your watch.
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