Honestly, except for dial markings, they're all the same watch made by the same people on the same lines in the same factory. Choose the one you like and go for it!

Thank you Sir!

i don't know much about the 9015 except that it's used in a lot of watch models. I've never personally touched or seen one. I don't follow on your second question - the 7548 is quartz, but the case it uses is literally identical to the 6309-729x, they're same exact case.

sorry i was typing on my phone. The question i wanted to ask : Any reason why seiko hasn't made new quartz model in the SKX case?

Software Developer ok gotcha. I don't know. They did make the successor 7C43-7010 from '86 to 9? But then they refocused on automatics, I don't know why. I wonder if one could put a 7C into an SKX case...

Thanks Spencer

You can Gift it To me

the crown seals for these are available, you might be thinking of the predecessor model, the 6105 divers. So, in theory, yes, but I don't test and strongly recommend against immersion or water exposure. These are vintage divers now, not working watches, if you ask me. I don't get mine near water ever.

I appreciate your fast reply. I understand the reasoning. It would be nice if it was though. Its hard to remember to take it off. I have jumped in a pool before without remembering and had to take the watch apart once already. I really like wearing it and wish it was able to get wet without getting ruined. What would be the cost to do new gaskets if I wanted to do that. Mine was serviced just a little while ago so I wouldn't need that. Thank you. If you need an email to provide the price I can do that. Just let me know.

If the sealing surfaces are good, if the case is clean, if the seals are new, in theory it should be able to cope BUT I have just seen too many dead watches. But I have a skewed sample size, as they come here when they need work. I just don't know that it's worth it. Yes, it would be nice to have a vintage watch that does all it is supposed to. For me, it's a risk, and I work to minimize risks.

Yes, perfectly!

Michael Sands awesome and thanks 🙏🏻

@@1968jpy BTW if you've been searching for one you probably know that genuine vintage Seiko Z199's are rare; very hard to find and EXTREMELY expensive seemingly regardless of condition. Uncle Seiko's reproduction Z199s are absolutely outstanding, reasonably priced, and readily available for shipment. I own three of them (actually four if you count the 20mm SKX013 version I modified to fit one of my vintage Citizen 52-0110 divers) and give them my highest possible recommendation!

Michael Sands thanks very much for this info . I own a skx009 that was given to me from my twin brother this past Christmas and to my surprise he put it on a brand new Strapcode 3D super oyster bracelet. Funny thing is I’m a huge fan of the jubilee style bracelets but to my surprise I’m loving this Strapcode 3D super oyster vey much 👍🏻. I have considered putting on a Strapcode angus jubilee bracket but in no hurry maybe one day .