The Big Kahuna's time was last set (to our company's email server, which is linked to an atomic clock) a little more than 1 month ago. I just checked it for the 1st time since then -- it lost 5 seconds! That is less than 2 secs/week!
Of the 4 quartz watches I have, only 1 maintains more accurate time than that!
Although The Kahuna does contain some gen (movement) parts, it is technically a fake Rolex, whose total financial outlay was less than $3,500 -- & without the games, waiting lists & various other issues that are part of today's 'gen buying experience'.
The Golden Cuckoo, fitted with the same contingent of gen parts (&, likewise, w/o any timing adjustments!), continues to run within gen specs, +/- 2secs/day.
I will say it again -- these 1165xx clones are 1 of the best buys in rep watch history. As further evidence of their accuracy, I just returned the gen gold 23-704 crown/tube I had purchased for The Cuckoo back into storage because they are nearly indistinguishable from the clone parts these 2 watches came with from the factory. Yes, these fake Rolexes are so good that it is not worth my time to swap gen parts for these fakes.