Seiko SRPD55 Steel Boat Master Mod – Black


A customize Seiko SRPD55 Steel Boat Master Mod. All over stainless appearance with a the black Seiko Dial and matching black rubber 2 piece strap.

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

The chapter ring and bezel have been modified with new 316L stainless steel parts to create that Boat Master style.

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 SRPD55 Steel Boat Master Mod pops right off the wrist with the double dome sapphire and all over stainless steel appearance. There are some variations of this mod so be sure to check the other mods on offer or get in touch if you are looking for something just for you.


Double dome sapphire crystal with blue anti-reflective coating.
Sloped ceramic insert
Polished stainless steel bezel with sub style grip/fluting.
Brushed stainless steel chapter ring.
Black rubber 2 piece with locking clasp


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 Black 2 Piece
Distance between lugs: 22

Other Details

Water Resistance: 10 bar
  • Unidirectional rotating bezel
  • See-through & Screw case back

All Seiko Mods come complete with original box, packaging and paperwork, tags etc. All watches have a serial number so it can be identified and serviced by Seiko in the future if you wish. All watches sold on the website come with a 24 month warranty for the movement and 12 months water resistance.

All base model Seiko watches and modified parts are in stock. Delivery will be made within 7-10 days for UK customers and 3 weeks for customers from abroad. You will be informed 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.



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