Kumamoto™ CTS End - Link Rubber Strap for Seiko SSK GMT - Navy - Anchor Strap Co.
Kumamoto™ CTS End - Link Rubber Strap for Seiko SSK GMT - Navy - Anchor Strap Co.
Kumamoto™ CTS End - Link Rubber Strap for Seiko SSK GMT - Navy - Anchor Strap Co.
Kumamoto™ CTS End - Link Rubber Strap for Seiko SSK GMT - Navy - Anchor Strap Co.

Kumamoto™ CTS End-Link Rubber Strap for Seiko SSK GMT - Navy

$129
/
Shipping calculated at checkout.
Designed & fulfilled in Southern California
30-Day Returns · 1-Year Warranty

Orders are processed in the order received and typically ship same day if placed before 12 PST M-F. We work hard to get orders shipped as quickly as possible and we are unable to cancel or alter orders once placed.

Delivery times vary by destination and carrier. You’ll receive a tracking email as soon as your order ships.

If your package shows delivered but can’t be located, please check with neighbors/building staff and allow 24–48 hours—then email support@anchorstrapco.com and we’ll help.

Full Shipping Policy

Eligible unused items may be returned or exchanged within 14 days of delivery. Items must be unworn, unaltered, and returned with original packaging.

Installed, worn, cut, sized, modified, or damaged items are not eligible for return.

Refunds to the original payment method may be subject to a $5 return shipping fee and 10% restocking fee. Fees are waived for verified defects, incorrect items, exchanges of equal or greater value, and store credit exchanges.

To request a return, log in to your customer account using the email entered during your purchase.

Full Returns Policy • Shipping Policy

Kumamoto™ System

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An Anchor System

Kumamoto was designed as a complete platform—end-links, clasp, and strap material engineered together for a seamless, integrated feel.

Omega Seamaster 2254

Seamless at the Lugs

Purpose-built end-links create a clean, continuous line from case to strap/bracelet—no awkward gaps, no generic fit.

Double Flip-Lock Security

A firm, reassuring close with refined tolerances. Built to feel precise every time you lock in—on steel or on rubber.

Refined, Not Flashy

Tool watch energy with premium execution—clean edges, tight fit, and a finish that looks sharp without shouting.

Kumamoto ™ CTS End-Link Rubber Strap for Seiko SSK GMT

Designed for the Seiko enthusiast who demands integrated precision and everyday comfort, the Kumamoto ™ CTS End-Link Rubber Strap is a seamless upgrade for your Seiko SSK GMT. Inspired by the robust geometry of oyster-style bracelets, this strap features a solid, custom-molded end link that hugs the case for a cohesive OEM look—no gaps, no compromises.

Crafted from high-performance FKM rubber, the Kumamoto CTS offers superior durability, resistance to sweat, heat, and UV, and a soft-touch finish for all-day wear. The bracelet-style taper, subtle chamfering, and matching stainless steel deployant clasp bring a refined yet tool-ready aesthetic to your Seiko.

Compatible with:

  • Seiko SSK00X Series  (SSK001, SSK003, SSK005)
  • Seiko SRPD5X Series (SRPD53, SRPD55, SRPD57, SRPD59)
  • Seiko SRPD6X Series (SRPD61, SRPD63, SRPD67, SRPD69)
  • Seiko SRPD7X Series (SRPD71, SRPD73, SRPD75)

Specs:

  • Material: Premium FKM Rubber

  • End Link: Custom molded end-links provided with purchase(see compatible models above)

  • Width: 22mm at lugs, tapering to 18mm at the clasp

  • Hardware: Brushed, corrosion resistant 316L stainless steel flip-lock deployant clasp

  • Water- and sweat-resistant

Upgrade your Seiko with a strap that wears like a bracelet and performs like a dive strap—built for those who appreciate purpose-driven design with a nod to the classics.

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