---
product_id: 197177774
title: "Crafter Blue CB03 20mm Watch Strap Rubber Band for Seiko MM300 MarineMaster"
brand: "crafter blue"
price: "€ 127.05"
currency: EUR
in_stock: true
category: "Crafter Blue"
url: https://www.desertcart.sk/products/197177774-crafter-blue-cb03-20mm-watch-strap-rubber-band-for-seiko
store_origin: SK
region: Slovakia
---

# 20mm lug width perfect fit 145mm length with ergonomic curve Pure vulcanized rubber, ultra durable Crafter Blue CB03 20mm Watch Strap Rubber Band for Seiko MM300 MarineMaster

**Brand:** crafter blue
**Price:** € 127.05
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your MarineMaster game with the ultimate rubber strap upgrade!

## Quick Answers

- **What is this?** Crafter Blue CB03 20mm Watch Strap Rubber Band for Seiko MM300 MarineMaster by crafter blue
- **How much does it cost?** € 127.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/197177774-crafter-blue-cb03-20mm-watch-strap-rubber-band-for-seiko)

## Best For

- crafter blue enthusiasts

## Why This Product

- Trusted crafter blue brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Original Buckle Ready:** Designed to pair with your existing buckle, preserving the authentic look and feel.
- • **Universal Compatibility:** Fits multiple Seiko MarineMaster references including SBDX001 to SLA023J1L, making it a versatile upgrade.
- • **Ergonomic Comfort Design:** Graduated thickness from 4.5mm to 3.5mm offers flexible yet sturdy wrist support.
- • **Vulcanized Rubber Strength:** Crafted from pure vulcanized rubber for superior resistance to oils, acids, and daily wear.
- • **Precision Fit for Seiko MM300:** Tailored 20mm curved ends ensure seamless integration with your MarineMaster models.

## Overview

The Crafter Blue CB03 is a premium 20mm vulcanized rubber watch strap designed specifically for Seiko MarineMaster models. Featuring a curved end for a perfect fit, enhanced durability against oils and acids, and an ergonomic thickness profile, it offers both style and resilience. Note: buckle not included, compatible with original buckles.

## Description

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## Features

- CRAFTER BLUE CB03 20mm curved end watch strap replacement watch band for Seiko MM300
- 20mm rubber watch strap compatible with Seiko MarineMaster SBDX001, SBDX003, SBDX005, SBDX017, SBDX021 (SLA019J1) and SBDX023 (SLA021J1), SBDX025, SLA023J1
- Lug width: 20mm; Buckle size: 18mm; Note: Buckle is NOT included, please use your original buckle.
- The NBR CRAFTER BLUE rubber strap is made of pure vulcanized rubber which has superior strength and more resistant than natural rubber to oils and acids
- Overall Length: 90mm + 55mm (Strap length:145mm / 5.71"); Thickness: Approx. 4.5mm - 3.5mm; Spring bar hole dia.: 2.50mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0DM5T1JLM |
| Best Sellers Rank | #2,330,412 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2,227 in Women's Watch Bands #4,694 in Men's Watch Bands |
| Customer Reviews | 3.8 3.8 out of 5 stars (36) |
| Date First Available  | November 6, 2024 |
| Department  | Unisex Adult |
| Manufacturer  | CRAFTER BLUE |

## Images

![Crafter Blue CB03 20mm Watch Strap Rubber Band for Seiko MM300 MarineMaster - Image 1](https://m.media-amazon.com/images/I/51umK-3YAOL.jpg)

## Available Options

This product comes in different **Color** options.

## Frequently Bought Together

- Crafter Blue CB03 Curved End Watch Band Rubber Strap Replacement for Seiko MM300 MarineMaster SBDX001, SBDX003, SBDX005, SBDX017, SBDX021(SLA019J1), SBDX025, SBDX023, SLA023J1(SLA021J1) etc
- MiLTAT 18mm Wetsuit Ratchet Buckle Diver Extension Clasp, 316L Stainless Steel Brushed

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**Shop now:** [https://www.desertcart.sk/products/197177774-crafter-blue-cb03-20mm-watch-strap-rubber-band-for-seiko](https://www.desertcart.sk/products/197177774-crafter-blue-cb03-20mm-watch-strap-rubber-band-for-seiko)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-09-10*