I saw a cool mod on a FB page. The guy had his watchmaker put a 6r20 escaptment into his modded Seiko which he was also putting in a Seiko or SII hacking movement which had the day of the week in it from the get go. However it could be done with a 6r15 as well.
The end game was that the beat rate went up to 28.8bph. He claimed some very high accuracy as well. I have heard that beat rate and accuracy are not all that related so I won't touch that!
He did have a video and the second had sweep looked nice, which would be my ultimate endgame.
I pm'd him and he said that one needs: balance wheel, anchor, escapement wheel, hairspring, main spring. from an 6r20 movement. (Of course you need a crown and stem that makes it all work with your movement/case swap as well. This ain't my first dog and pony show.)
I found a 6r20 parts map PDF from Seiko USA and the parts for the 6r20 movement are accessible.
Like me, the guy outsources all the actual work, so I think his watchmaker came up with the idea and took the lead on all of it. The watchmaker was a Seiko approved watch repair guy or something like that. I will say the guy seems to have enough knowledge to have a pretty good idea of what the watchmaker did. So key details could be missing however.
Has anybody around here tried this? On the FB page folks were freakin out on it but like at "Mods Neophytes 101" level so I am boosting it up to here.
I did a quick search on this forum and nothing came up. My apologies if I missed something. Hey it brought me back to old skool forums and away from the FB Cambridge Analytica Crack Place.
Thanks for your feedback. Makes sense. I have a few Ne15's and Nh35's laying around. I'll check out where they land in terms of Ne15 a, b, c, and see if I can piece it all together before I source any parts. Of course if some brave men, more experienced, skilled and just plan smarter than me take the lead, I can always humbly follow the greater footprints of others and save me a lot of time, money, and frustration.
I found the receipt for my SKX purchased from a Seiko Store in 2004, around $275. The Dagaz mod parts were $75ish, the NE15 was $110, Stargate dial $55. Still have to relieve an NH36 watch of its Day parts. Oh yea, the Kanji Day wheel I got, almost forgot., $35.
What's another 125 bucks? I'm good with math but I'm not even going to add up that list. Averaged out over 14 years of owning it, it isn't that bad.
I'm going to research this some more before I jump. I can service a movement but not sure if I'm good enough yet to diagnose, correct any potential problems.