Seiko Prospex Luxe

Seiko SBDX014 Emperor Tuna Marine Master 1000m Dive Watch

Seiko SBDX014 Emperor Tuna Marine Master 1000m Dive Watch

Authored By DePaula Jewelers

Seiko Marine Master SBDX014 Tuna Dive Watch

$3,250 - Seiko 1000m Marine Master Tuna SPBX14 - Out of Stock 

The SBDX014 - A Tribute to an Icon

The Seiko Tuna is one of the most iconic wristwatches today.  The original Tuna was designed in 1975.  That watch had a lot going for it, so much so that Seiko was awarded several patents.  Later, in 1978, Seiko developed the first saturation dive quartz watch, another Tuna, affectionately called the Golden Tuna.  The SBDX014 is in many ways a tribute to that sought after watch.

Little has Changed

When the Seiko Tuna was designed they must have gotten something right.  The Seiko Tuna is an essential dive watch from the special casing to the first accordion style dive band.  An design that helps the diver with the expanding and shrinking of rubber at different depths.  A band that is in use on almost all "rubber" silicone dive bands for Seiko.  The casing was so revolutionary and so perfect, that Seiko has seen no reason to have any major changes.  That is why the re-issue or inspired tuna the SBDX014 is more similar that different than the original Tunas.  While the look is the same, only the more modern materials and movement give you a truly modern feel.

A Little More Horse Power

The SBDX014 is an automatic watch.  A great movement would be an understatement when talking about the movement in the SBDX014 Emperor Tuna dive watch.  Seiko didn't just give this watch a plain old work horse movement like the 4R36.  No, they wanted to make sure that this was a serious professional dive watch, the watch is part of the elite MarineMaster series.  The movement is the 8L35, with a power reserve up to 50 hours.

The SBDX014

The Emperor Tuna or the SBDX014 is a breath taking watch.  It is cool for being so different.  It is a watch that doesn't try to be something for everyone.  No, it is what it is, and that is a professional dive watch.  The case is built in a one piece casting, the "shroud" protects the watch from pressure and abuse from diving.  This is not a watch you wear with a suit or tuxedo.  It is a watch for those who go on adventures.  It is a watch for someone who truly lives and wants their watch not to be some crappy digital screen that can't take any abuse.  No, instead they want a work of tradition and engineering, something that can take the abuse.  The SBDX014 is a professional dive watch and you may think the rose gold tone on the watch would be a little out of place.  While in fact the rose color, a warm copper feel actually give the watch some warmth.

The Emperor Tuna SBDX014

First thing about the this Tuna Marine Master watch is that you have to realize it is a large watch.  Now with the lugs under the watches "shroud" it feels smaller, but it is still a solid 53mm watch case.  Also the watch is 17mm thick.  The watch has a superior 8L35 movement and a sapphire crystal.  The watch has a power reserve of 50 hours.  The watch has an amazing depth rating of 1000 meters

Driving system Automatic with manual winding mechanism
Caliber Number 8L35
Band material Silicon
Glass Sapphire crystal
Lumi Brite Hands and indexes
Drive duration Power reserve: 50 hours
Accuracy -10 to +15 seconds per day (when static)
Water resistance 1000m water resistance suitable for saturation diving
Magnetic reluctance Magnetic resistance
Size H 53.5mm x W 52.4mm x D17.2mm
The perimeter of bracelet 210mm
Weight 158g
Driving system
  • One-way bezel
  • Screw down crown
  • Jewels: 26 jewels
  • Stop second hand function



Formed in 1881, Seiko is now Japan's premier watchmaker.  Seiko is an in house watchmaker.  Creating it's own movements from quartz, solar, mechanical to spring drive.  Seiko creates watches at nearly all pricepoints.  Seiko embraces traditional Japanaese crafts, culture and work ethic.  Seiko is one of the most innovative watch brands out there.  


DePaulas was established in 1984 and is located in the Florida Keys.  DePaulas has been an authorized Seiko dealer for over 25 years.  Our watches are brand new and ready to ship the same day or next business day.  We show and inform you about the watch through our unboxing videos on YouTube.  DePaulas offers free shipping.


Seiko Prospex Emperor Tuna Watch SPBX14

$3,250 - Seiko Tuna Marine Master SPBX14 - Out of Sto


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