Check out the Best Seiko Prospex Divers Watches for under $600

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Last Updated on November 22, 2020

The Best Seiko Prospex Divers Watches under $600

The Seiko Prospex Divers range are made for water sports lovers and adventure seekers. Any watch over 40 mm in diameter is considered a big watch. All the watches listed below are all big men's divers watches and are suitable for Scuba diving and high impact water sports.  

If you like the classic divers look, and have a big wrist, then you're sure to find something to your liking here. You'll also find that many of these are regularly on Sale, so it should be easy to grab a bargain. 

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Seiko Prospex SRPD21 Turtle

What is a Seiko Prospex Watch?

The Prospex range of Seiko diver's watches are rugged, stylish and classic looking diver's watches that are water resistant to a minimum of 200 meters. They are also ISO-6425 certified. The word Prospex is simply abbreviated from the words 'Professional Specifications'.

These are made and marketed not only towards Scuba Divers, but to anyone who loves water activities.  

What does being ISO 6425 Certified mean?

Some watches are called a divers watch by their manufacturer but for many, this is only about the look of the watch, rather than whether or not it is actually suitable for diving. Only watches that are ISO 6425 certified can be a true Divers Watch.

To gain ISO 6425 certification, watches must meet certain safety standards that apply to all Diving watches. Firstly, it must be water resistant to 200 meters. This means it must be able to take atmospheric pressure to this depth, which makes it suitable for Scuba diving. 

The Bevel will be unidirectional, meaning it can only turn in one way. It is a precise measure of minutes elapsed, and there is an audible click as it's moved. The bevel also becomes more difficult to turn when underwater so that it doesn't move accidentally if knocked while diving. 

Seiko Prospex Turtle Mens Automatic

Within the Seiko Prospex range, some watches are called a'Turtle' due to the shape of their case. Their shape quite simply resembles the back of a turtle. 

Seiko SRPA21 Turtle - PADI Blue and Red

Seiko SRPD21 Prospex PADI Turtle
  • Face Color - Blue
  • Bezel - Blue and Red
  • Band - Stainless Steel with a fold-over clasp
  • Band (Lug) Width - 20 millimeters
  • Case Diameter - 44 millimeters
  • Case Width - 13 millimeters
  • 4R36 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Day/Date display
Seiko SRPA21 PADI Turtle
Seiko SRPA21 PADI Turtle

Seiko SRPC44 Turtle - Black and Gold

Seiko Prospex SRPC44 Mens Divers Watch
  • Face Color - Black
  • Bezel - Black and Gold
  • Band - Black Silicone with a buckle clasp
  • Band (Lug) Width - 21 millimeters
  • Case Diameter - 44.3 millimeters
  • Case Width - 13.3 millimeters
  • 4R36 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Day/Date display
Seiko SRPC44 Turtle Black and Gold
Seiko SRPC44 Turtle

Seiko SRP775 Turtle - Silvertone Black & Gold

Seiko Prospex SRP775 Automatic Divers Watch
  • Face Color - Black
  • Bezel - Black and Gold
  • Band - Silvertone Stainless Steel with a fold-over clasp
  • Band Width - 22 millimeters
  • Case Diameter - 45 millimeters
  • Case Width - 13.3 millimeters
  • 4R36 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Day/Date display
Seiko SRP775 Turtle

Seiko Prospex Samurai Mens Automatic

Watches in the Seiko Samurai collection are so-called because of the distinctive sword shaped hands of these watches. 

Seiko SRPB51 Samurai Black and Grey

Seiko Prospex SRPB51 Mens Divers Watch
  • Face Color - Black
  • Bezel - Black and Grey
  • Band - Stainless Steel with a fold-over clasp
  • Band Width - 22 millimeters
  • Case Diameter - 43.8 millimeters
  • Case Width - 12 millimeters
  • 4R35 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Day Display
Seiko SRPB51 Black Samurai

Seiko SRPB53 Samurai - Blue and Red

Seiko SRPB53 Samurai
  • Face Color - Blue
  • Bezel - Blue and Red
  • Band - Black Silicone with a buckle clasp
  • Band Width - 22 millimeters
  • Case Diameter - 43.8 millimeters
  • Case Width - 13.5 millimeters
  • 4R35 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Date Display
Seiko SRPB53 Samurai
Seiko SRPB55 Samurai

Seiko SRPB55 Samurai Black and Gold

Seiko SRPB55 Mens Black Divers Watch
  • Face Color - Black
  • Bezel - Black and Gold
  • Band - Black Silicone with a buckle clasp
  • Band Width - 22 millimeters
  • Case Diameter - 43.8 millimeters
  • Case Width - 13.5 millimeters
  • 4R35 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Date display
Seiko Prospex SRPB55 Samurai

Seiko SRPC07 Samurai Orange

Seiko Men's SRPC07
  • Face Color - Orange
  • Bezel - Black and Orange
  • Band - Stainless Steel with a fold-over buckle
  • Band Width - 22 millimeters
  • Case Diameter - 43.8 millimeters
  • Case Width - 12.8 millimeters
  • 4R35 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Date display
Seiko SRPC07 Orange Samurai
Seiko SRPC07 Orange Samurai

Seiko Prospex Special Edition - Blue Whale Wave Pattern

Seiko Prospex SRPD11 Special Edition

Seiko SRPD11 Turtle - Special Edition 

  • Face Color - Blue and Black Whale / Wave patterned
  • Bezel - Blue and Black
  • Band - Stainless Steel with a fold-over clasp
  • Band Width - 22 millimeters
  • Case Diameter - 45 millimeters
  • Case Width - 13.4 millimeters
  • 4R36 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Day/Date display
Seiko Prospex SRPD11 Turtle Special Edition - Save the Ocean
Seiko Prospex SRPD11 Turtle Special Edition with NATO band

Seiko SRPD09 Samurai - Special Edition

Seiko SRPD09 Special Edition
  • Face Color - Blue and Black Whale / Wave patterned
  • Stainless Steel Case with Black Ion Finish
  • Bezel - Black and Blue
  • Band - Blue Silicone with a buckle clasp
  • Band Width - 22 millimeters
  • Case Diameter - 43.8 millimeters
  • Case Width - 12.8 millimeters
  • 4R35 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Date Display

Seiko SRPC93 Samurai - Special Edition

Seiko Prospex SRPC93
  • Face Color - Blue and Black Whale / Wave patterned
  • Bezel - Blue
  • Band - Stainless Steel with a fold-over clasp
  • Band Width - 22 millimeters
  • Case Diameter - 43.8 millimeters
  • Case Width - 12.8 millimeters
  • 4R35 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Date Display
Seiko Prospex SRPC93 Samurai Special Edition
Seiko Prospex SRPC93 Samurai Special Edition

Save the Ocean - Seiko Prospex Special Edition

In order to help preserve our marine environment, Seiko has committed to donating a portion of the sales world-wide of the 'Save the Ocean' Special Edition collection. Money is donated to the Fabien Cousteau Ocean Learning Center,
which is a not-for-profit organization. This center is dedicated to raising awareness and educating people on how to preserve and protect our oceans and endangered marine life.

Great White Shark Special Edition - Turtle and Samurai

The dial of the Great White Shark Special Edition Prospex watches have a very distinctive blue pressed pattern that resembles waves. It’s a metallic, shimmering oceanic blue.

Beautifully hidden near the eight o'clock mark is a shark fin.

Seiko Samurai Great White Shark Close Up of Watch Dial

Seiko SRPD21 Turtle - Special Edition - Great White Shark

Seiko Prospex SPRD21 Automatic Divers Watch
  • Face Color - Graduated Blue
  • Bezel - Blue and Grey
  • Band - Stainless Steel with a fold-over clasp
  • Band Width - 22 millimeters
  • Case Diameter - 45 millimeters
  • Case Width - 13.3 millimeters
  • 4R36 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Day/Date Display
Seiko Prospex SRPD21 Turtle
Seiko Prospex SRPD21 Turtle on wrist
Seiko Special Edition Save the Ocean Back of CaseBack

Seiko SRPD23 Samurai - Special Edition - Great White Shark

Seiko SRPD23 Samurai Great White Shark
  • Face Color - Graduated Blue
  • Bezel - Blue and Grey
  • Band - Stainless Steel with a fold-over clasp
  • Band Width - 22 millimeters
  • Case Diameter - 43.8 millimeters
  • Case Width - 13.5 millimeters
  • 4R35 - Automatic movement with manual winding capacity
  • Accuracy +45 to -35 seconds per day
  • Date Display
Seiko SRPD23 Special Edition Great White Shark
Seiko SRPD23 Special Edition Save the Ocean

Personalize your Seiko -  How to Change the Strap Video

Watches in the Seiko Prospex range will come with either an accordion style rubber strap or a stainless steel bracelet. The rubber is ribbed so it can expand over a wet suit or dry suit.

It's relatively easy to personalize the look of a watch by swapping a band out with another style.

You can completely change the look with a Nato, stainless steel, leather, or any other style of band.


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  • The Seiko SRPC44 Turtle, Black, and Gold to me is absolutely stunning. Sure I am guilty of popping into a “Bricks and Mortar” real shop to check the full Seiko range, but for my own convenience and price, I purchased mine online. Ended up a hell of a lot cheaper too.

    They had a demo model only in my local shop in Singapore and told me it could take 3 to 4 weeks to get one into stock.

    I saved the money and purchased online. Took only 4 days from the US to get to me.

    It has a very comfortable band as well. Nicely done Seiko. You make the best value watches EVER!

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