u/maugustus

Mark XX amplitude drop, is this normal? 290° to 230° in an hour

My 2-month-old Mark XX keeps decent time (slow by 3 to 4 seconds/day), but timegrapher readings make me wonder if something is not quite right inside.

Beat error is good and steady (0.0 to 0.4), but amplitude declines quite a bit over time.

Amplitude starts 281–294° shortly after wearing the watch. Then sinks down to 223–231° within 50–60 minutes while sitting untouched (dial up).

The above behavior was seen about 10 hours after fully winding the watch.

Within 5 minutes of fully winding the watch, amplitude is about 220.

Is this normal?

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u/maugustus — 8 hours ago