【Replacement Blue Rubber Strap for Cartier Santos 100 – 21mm QuickSwitch Silicone Band】 – Precision-engineered replacement strap designed for Cartier Santos 100 series. Features 21mm lug width with QuickSwitch quick-release system for tool-free strap swaps in seconds--2. – delivering superior durability, water resistance, and all-day comfort-. Available in blue and other color options.
Perfect Fit for Santos 100 Series – Specifically engineered for Cartier Santos 100 models. The precision 21mm fit ensures a seamless, gap-free installation-. Compatible with Santos 100 Medium, Large, and XL models-7. Important: Santos 100 uses a screw-mounted lug system – not the QuickSwitch found on modern Santos de Cartier--2. Please confirm your watch reference before ordering.


















Resists sweat, UV, heat, chemicals, and oils-. Unlike silicone, FKM is naturally dust-proof and maintains a clean, high-end finish-. Soft and skin-friendly for all-day comfort, yet tough enough for daily wear and outdoor activities-.
Sporty Blue Aesthetic – The vibrant blue rubber construction adds a modern, athletic touch to the iconic Santos 100 square case-. Perfect for transforming your Santos from a dress watch to a versatile sports watch for any occasion.
Durable & Waterproof – FKM rubber is totally waterproof and sweatproof – suitable for swimming, diving, or running-. Won't crack, peel, or degrade over time like natural rubber-. Resists dust and dirt for low-maintenance wear-.
OEM-Spec Alternative – Precision-machined to match original Cartier specifications. A cost-effective solution compared to OEM Cartier straps-1. Note: These are aftermarket replacement parts, not genuine Cartier® parts.
Easy Installation – Direct replacement for the original strap. Compatible with standard screw-bar tools. Professional installation recommended to avoid stripped lug screws-2.