Seiko SRPD79 Blackout Boatmaster Mod -Yellow & Blue


Seiko SRPD79 Blackout Boatmaster Mod -Yellow & Blue

Both the crystal and bezel insert feature increased scratch resistance materials.

This watch will stand up to most thing life can throw at you, in the city, the wilderness or at sea.

Like it, but it needs a little tweak? Please get in touch.





The Seiko SRPD79 Blackout Boatmaster Mod has an upgrade to the crystal, bezel insert, and strap. Further modifications have been added to bring a little colour to the watch, including a chapter ring with blue hour markers, and a yellow lightning second hand.  This SRPD79 is a hugely popular base for mods. The vibrant blue and yellow is a fabulous contrast to the stealth; black, black and some more black.mod


Double dome sapphire crystal with blue anti-reflective coating. (AM)
Sloped ceramic bezel insert. (AM)
Blue rubber two piece strap by Monstraps.(AM)
Chapter ring with blue hour markers. (AM)
Yellow lightning second hand. (AM)


Calibre: 4R36
Movement Type: Automatic with manual winding
Power reserve: Approx. 41 hours
Jewels: 24
  • Stop seconds hand function
  • Day/Date display


Case Material: Stainless steel
Case Size: Thickness 16.05mm, Diameter 42.5mm, Lug-to-lug 46.0mm
Crystal: Sapphire Double Dome
Band Material: Rubber
Distance between lugs: 22mm

Other Details

Water Resistance: 10 bar
  • Unidirectional rotating bezel
  • See-through and screw case back

Seiko SRPD79 Blackout Boatmaster Mod -Yellow & Blue

All “Seiko Mods” sold by WellingTime began their life as a Seiko watch in a Seiko factory somehwhere in Asia. These are sourced though authorised distributors here in the UK and come complete with original box, packaging, paperwork any tags etc.

All base model Seiko watches and modified parts are in stock. Delivery will be made within 7-10 days for UK customers and 3-4 weeks for customers from abroad. You will be informed when your order has been received and given an expected delivery date. After your watch has been modified you will have your delivery date confirmed along with a Royal Mail or DHL tracking number.

All “Seiko Mods” sold on the website come with a 24 month warranty. The warranty is supplied by WellingTime as the manufacturer (Seiko) will no longer offer warranty to modified watches.

Where possible all Modified Seikos (Seiko Mods) will have modifications made to the original parts or be modified with additional OEM (Genuine) Seiko parts. Some modifications require the use of what maybe refered to as “after market parts”. These are parts not manufactured by Seiko although every effort is made to ensure high quality replacment parts. These are sourced from long term trusted suppliers and will be marked in the product description with the letters “AM”.

WellingTime has no affilliation with Seiko or any other brands.

This watch is also available on ebay.

Additional information

Weight 700 g


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