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Seems pretty acceptable performance to me....

April 1 2010 at 9:13 AM
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Frank  (Login minidriver_2009)
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Response to Marine Master accuracy report...


Although you would expect the 8L35 to be "tighter" than the 6R15.

At any rate, I have two 6R15 Seiko SARBs (045 & 033). The 045 is -/+ 0 dead even most of the day against NIST but gains 1 sec at the most over 24 hour period. My 033 stays pegged to NIST for about 8 hours, then loses -1 sec towards the early evening and with the crown up position it loses about 5-6 secs overnight.

I think the factory regulation of the 6R15s is pretty consistent but you'll see interesting variations among different watches so equipped with the same movement.

To be honest, the 8L35 being a "high grade" mechanical movement assembled at SII watch Studio (Seiko Morioka) seems to have its accuracy all over the map. Is the 8L35 factory adjusted to 6 positions + temperature?

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