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Seiko Prospex MONSTER Black Series LE SRPH13K1 Auto Watch

August 17, 2021 3 min read 2 Comments

Seiko SRPH13 Prospex Ninja Monster Automatic Watch
Seiko SRPH13 Prospex Ninja Monster Automatic Watch, Only 7000 Made, Black Series Limited Edition, Mineral Glass

Pairs the cool Seiko SRPH13 Ninja Monster with Canvas watch band

You could say that black is perhaps the most popular, if not the most commonly used color on dive watches. The Seiko Prospex Black Series started back in 2018. The idea of the black series was inspired by night diving. The all black aesthetic was showcased on a Seiko Turtle and two Prospex Solar Divers watches – one a classic three hand date model and the other a chronograph.

Seiko Ninja Monster look great on both Suede and Orange Tapered (Zermatt lining) watch bands

Since then, the brand has introduced yet another blacked-out collection in 2020, including the two models, the SLA035J1 and SPB125J1. This year, Seiko decide to feature three different iconic designs which are the ‘Monster,’ ‘Tuna,’ and ‘Samurai’.

Beautiful Italian Leather watch band on Seiko Prospex Black Series Limited Edition Monster Automatic Watch SRPH13K1

Our discussion today will be focusing on the Seiko Prospex Monster Collection Black Series Limited Edition Automatic Mens Watch SRPH13K1. Seiko’s Monster series is one of the signature collections from Seiko that was first introduced back in 2000. The Seiko Monster got its nickname from Seiko fans and collectors due to its unique profile and resemblance. This watch has a black & grey bezel with a black dial with orange outlined minute hand and a day and date function.

The military-style of NATO watch straps gave the Seiko Black Monster entirely new looks, Left & Right

There is a limit of 7000 pieces available worldwide. The markers and lumibrite orange coloring are designed for increased visibility in the dark word of the night sea – orange is the color of night divers’ lamps, allowing time to be read clearly under dark conditions.

Reissue Retro Razor Black Metal Watch Band on Seiko Monster Ninja SRPH13K1

This Seiko Monster SRPH13K1 features the Seiko automatic 4R36 movement with an approximate 41 hour power reserve (once fully charged). Caliber 4R36 watches have an accuracy tolerance of +45/-35 seconds a day. This watch has a 42.4mm case in hard coated stainless steel with a black silicone strap and uses hardlex glass. As a 200m water resistant dive watch, the SRPH13K has a one way rotating bezel and a screw lock crown. The dial for the SRPH13K1 follows the same design principle of the rest of the fourth generation Monster watches, with a dial that features markers more in line with the first generation models.

Orange FKM Rubber watch band on this Limited Edition Seiko Black Monster

Like always, any diver watch under that are under the Seiko Prospex line up are bound to be awesome timepieces. To understand the meaning of “Prospex”, which comes from a combination of the words “Professional” and “Specifications”. Seiko Prospex watches combine presence and portability, are practical, reliable and durable. They meet the high standards required for both sports lovers and adventure faraway places as well as everyday life.

PVD Black Super Engineer II Watch Band gives a hefty substantial feel to the Monster watch

For those who are interested in the SRPH13K1 black series Monster watch from Seiko, they are currently available at your local authorized Seiko dealer shops for 570.00USD. Don’t forget to visit our store to check out our watch band collections that are maybe of interest to you.



  • Brand: Seiko
  • Model: SRPH13K1
  • Width: 42.4 mm
  • Depth: 13.4 mm
  • Display Type: Analogue
  • Case Material: Stainless Steel
  • Movement: Seiko 4R36 Automatic
  • Seiko watch band Type: Silicone
  • Strap Width: 20 mm
  • Clasp Type: Buckle
  • Water Resistance: 20 ATM
  • Packaging: Seiko Black Series Packaging


Written by Sam , images by Toni

2 Responses


August 25, 2021

Hello, yes that should work =)

David Rutherford
David Rutherford

August 23, 2021

Strap code,

I would like to buy the black metal band only in the photo above. I think it would look great on my older Seiko 5 Sports Watch. 2011?
Please, let me know.

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