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learningtofly · 9 February 2013, 08:43 PM

I've made a bit of a fool of myself lately, with a flipping spree that went along the lines of Monster -Tuna - Monster - Tuna - Monster - Tuna - Tuna. Well, that's not quite right because the final Tuna is staying, and that's because I eventually followed my heart and went vintage again. This one's a 7549-7010 from 1978 and it's absolutely AMAZING!

It was actually the first of Seiko's shrouded divers designed by Ikuo Tokunaga (the chief designer of Seiko's Professional Diver series) but what little information is archived away in the (no longer available) Tokunaga Watch Museum. However, it can still be accessed thanks to the amazing Internet Archive Wayback Machine, from which the following has been “rescued”:

Quote:

The first professional quartz diver's watch model of 300m saturation diving specification in Japan. The movement is [7549] caliber which has 5years battery life. There are 17 new technologies, such as L shaped glass gasket structure, glass screw ring fixing structure, twin side shield crown structure, special elastic strap made from polyurethane rubber same as 600m professional diver's watch.

Anyway, I can’t begin to describe how lovely it is, but here’s a few really quick and dirty shots as I’m just off to football. Apologies for the last one, but it’s a very reflective crystal and requires more time and attention than I could give it right now.

Psmith · 9 February 2013, 11:04 PM

Congrats Tony - looks fantastic!

nick c · 9 February 2013, 11:10 PM

Congrats

learningtofly · 10 February 2013, 12:54 AM

Thanks guys. The interesting thing in that Tokunaga passage for me is the reference to Seiko’s pioneering L-shaped glass gasket, which is – still – the reason that Seiko’s professional/saturation divers avoid the need for a Helium Escape Valve which you’ll find on pretty much all the the “oppositions” watches.

Anyway, a few more shots...

kilyung · 10 February 2013, 01:43 AM

Great pics!

Lgear080 · 10 February 2013, 02:06 AM

Yes! Really great pics. I've had a few beater tunas
But nothing that special. Enjoy.

FeelingTheBlues · 10 February 2013, 03:18 AM

Very nice watch Tony, well done my friend!

Matt0129 · 10 February 2013, 05:30 AM

Looks great!

mjclark32 · 10 February 2013, 05:31 AM

Congrats!

Cabaiguan · 10 February 2013, 05:50 AM

Love Seiko Tunas. Seiko was the first brand that I started collecting when I got into watches. Non remain, but still have a soft spot for them.

aboen · 10 February 2013, 06:54 AM

Nice. I'm looking to add a Tuna in small collection as well.

stuffgeek · 10 February 2013, 07:01 AM

Never knew that about the gaskets..I got a 7C43 someday a tune :)

Maxtor · 10 February 2013, 08:16 AM

Beautiful pictures. Enjoy the watch.

nauticajoe · 10 February 2013, 09:11 AM

Nice find.

Congrats!

SearChart · 11 February 2013, 06:47 PM

Lovely watch, wear it in good health

9 February 2013, 11:04 PM	#2
Psmith "TRF" Member Join Date: Sep 2008 Real Name: Clive Location: Exoplanet Watch: spring-driven Posts: 38,856	Congrats Tony - looks fantastic! __________________

10 February 2013, 12:54 AM	#4
learningtofly 2024 SubLV41 Pledge Member Join Date: Jun 2010 Real Name: Tony Location: London, England Watch: Hmmm... Posts: 2,483	Thanks guys. The interesting thing in that Tokunaga passage for me is the reference to Seiko’s pioneering L-shaped glass gasket, which is – still – the reason that Seiko’s professional/saturation divers avoid the need for a Helium Escape Valve which you’ll find on pretty much all the the “oppositions” watches. Anyway, a few more shots... __________________ Tony

10 February 2013, 03:18 AM	#7
FeelingTheBlues "TRF" Member Join Date: Sep 2011 Real Name: Carl Location: Always moving Watch: If you wish... Posts: 22,039	Very nice watch Tony, well done my friend! __________________ Mon corps c'est un pays en guerre sur l'point d'finir, Le général de l'armée de terre s'attend au pire, J'ai faim, j'ai frette, je suis trop faible pour me lever debout, On va hisser le drapeau blanc un point c'est tout. - André Fortin

10 February 2013, 05:31 AM	#9
mjclark32 "TRF" Member Join Date: Mar 2010 Real Name: MJC Location: PHL USA Watch: IWC, Rolex, AP Posts: 29,232	Congrats! __________________

10 February 2013, 05:50 AM	#10
Cabaiguan "TRF" Member Join Date: Mar 2010 Real Name: Raf Location: NJ Watch: GMTII Posts: 2,155	Love Seiko Tunas. Seiko was the first brand that I started collecting when I got into watches. Non remain, but still have a soft spot for them. __________________ "A ship of war is the best ambassador." - Oliver Cromwell

9 February 2013, 11:10 PM	#3
nick c Banned Join Date: Feb 2012 Location: Canada Posts: 26,846	Congrats

10 February 2013, 01:43 AM	#5
kilyung 2024 SubLV41 Pledge Member Join Date: Jul 2009 Location: Cave Watch: Sundial Posts: 33,940	Great pics!

10 February 2013, 02:06 AM	#6
Lgear080 Banned Join Date: Sep 2010 Location: NYC Posts: 3,506	Yes! Really great pics. I've had a few beater tunas But nothing that special. Enjoy.

10 February 2013, 05:30 AM	#8
Matt0129 "TRF" Member Join Date: Jan 2013 Location: florida Posts: 29	Looks great!

10 February 2013, 06:54 AM	#11
aboen "TRF" Member Join Date: Oct 2010 Location: Here and there Posts: 935	Nice. I'm looking to add a Tuna in small collection as well.

10 February 2013, 07:01 AM	#12
stuffgeek "TRF" Member Join Date: Mar 2012 Location: Chicagoland Posts: 30	Never knew that about the gaskets..I got a 7C43 someday a tune :)

10 February 2013, 08:16 AM	#13
Maxtor 2024 SubLV41 Pledge Member Join Date: Oct 2009 Real Name: Max Location: Toronto Watch: Exp 1, DJ Tuxedo Posts: 2,472	Beautiful pictures. Enjoy the watch.

10 February 2013, 09:11 AM	#14
nauticajoe "TRF" Member Join Date: Feb 2010 Real Name: Joe Location: PA Posts: 14,774	Nice find. Congrats!

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