With it running out as much as it is, my suggestion is that it should go back. If it was the shop that did the work that told you to expect it to be out 3 to 4 minutes per week, then I suspect the repair (and adjusting) was not complete, or the rating was either not done, or was not satisfactorily done. Only after a COMPLETE service, adjusting as required to stabilize the rate in all positions, thorough rating to establish consistency in rate, can the watch be regulated for accuracy. Many “watchmakers” consider antique watches a waste of time as the repair time involved in servicing antique watches for particular customers cuts into their production, and profit.
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