Good read. Thanks.

 

Very nice. If you need any info to fill in the blanks, or find any models I have missed, take a look here:
http://www.watchfreeks.com/23-seiko/182034-seiko-tuna-diver-reference.html

I haven't published my most recent updates yet, but at the moment I believe every current and past Tuna professional diver is accounted for.

Hi guys!

Sharing with you our newest collector's guide: http://thespringbar.com/seiko-tuna-collectors-guide/

Comments on corrections and improvements suggestions are welcome, as always.

Thanks!

 

"Finally, the Baby Tuna 5M23 had “Kinetic Quartz” in the dial."

There was a 5M23-6A10 and a 5M23-6A19. The 6A10 was marked "AGS", and the 6A19 was marked "Kinetic". That was the same time Seiko landed the patents and trademarked for the term Kinetic and the reason for the change. Both watches were identical aside from the dial markings and came out in 1990 and 1991 respectfully.

The cases of model 7549-7010 for both the SQ and Professional executions were made of stainless steel, while model 5M23-6A19’s Kinetic and AGS variants were made of plastic.

The Kinetic and AGS model both featured stainless steel cases, with plastic "resin" shrouds.

Pictures from my 5M23 "Golden Kinetic Tuna":

 

Another good one to add is where you make this statement:

Watch collectors seeking for the ultimate Seiko Tuna timepiece should look no further than the first variant in the series, the Grandfather Tuna 6159-7010

An even better Tuna grail was made later, in the "Grandfather Tuna Redux" SBDX005, a year 2000 re-release of the original Grandfather Tuna but with the 8L35 auto movement. Only 1,000 were made, and they actually are more rare and fetch higher prices than the original.

Great guide, just offering some corrections and updates. Keep up the good work!

 

Another good one to add is where you make this statement:
An even better Tuna grail was made later, in the "Grandfather Tuna Redux" SBDX005, a year 2000 re-release of the original Grandfather Tuna but with the 8L35 auto movement. Only 1,000 were made, and they actually are more rare and fetch higher prices than the original.

Great guide, just offering some corrections and updates. Keep up the good work!

Appreciate the corrections, Garrick. Thanks!

 

that watch looks in the good looking,I like the dial very much.
how about the price around?