---
product_id: 197177774
title: "Crafter Blue CB03 20mm Watch Strap Rubber Band for Seiko MM300 MarineMaster"
brand: "crafter blue"
price: "17166 kr"
currency: ISK
in_stock: true
category: "Crafter Blue"
url: https://www.desertcart.is/products/197177774-crafter-blue-cb03-20mm-watch-strap-rubber-band-for-seiko
store_origin: IS
region: Iceland
---

# 145mm total length, perfect wrist adaptability 20mm lug width precision fit Pure vulcanized rubber, oil & acid resistant Crafter Blue CB03 20mm Watch Strap Rubber Band for Seiko MM300 MarineMaster

**Brand:** crafter blue
**Price:** 17166 kr
**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?** 17166 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/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

- • **Customizable Length:** Dual strap lengths (90mm + 55mm) provide a tailored fit for wrists around 7 inches and beyond.
- • **Sporty Comfort All Day:** Thick yet flexible 4.5mm-3.5mm strap thickness ensures rugged durability without sacrificing comfort.
- • **Durable Vulcanized Rubber:** Crafted from premium NBR rubber that outperforms natural rubber in strength and chemical resistance.
- • **Original Buckle Compatible:** Designed to pair flawlessly with your Seiko’s original tang buckle for authentic style retention.
- • **Precision Fit for Seiko MM300:** Engineered with exact 20mm lug width for seamless integration with iconic MarineMaster models.

## Overview

The Crafter Blue CB03 is a 20mm vulcanized rubber watch strap designed specifically for Seiko MM300 MarineMaster models. It offers superior durability against oils and acids, a precise fit with curved ends, and a sporty yet comfortable thickness. Compatible with original buckles, this strap transforms your watch into a versatile, everyday adventure-ready accessory.

## 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 | #1,614,461 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1,438 in Women's Watch Bands #3,161 in Men's Watch Bands |
| Customer Reviews | 3.8 3.8 out of 5 stars (35) |
| 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.is/products/197177774-crafter-blue-cb03-20mm-watch-strap-rubber-band-for-seiko](https://www.desertcart.is/products/197177774-crafter-blue-cb03-20mm-watch-strap-rubber-band-for-seiko)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-10-13*