Had it six weeks. It is now around -2.3 seconds per day. I expect that to improve over time. It seems like after a few months they speed up slightly on average. Love the watch. Just had my sub calibrated. It is now +1.5 seconds per day.
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16610 Submariner - 116710 GMT II C - 16570 Explorer II - 126710BLRO GMT II (Pepsi) - 116300 Datejust II
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