【Replacement Crocodile Bamboo Grain Leather Strap for Cartier Ballon Bleu – Convex End Fit for All Sizes】 – Precision-engineered replacement strap designed for Cartier Ballon Bleu de Cartier series. Available in all sizes from 28mm to 42mm with matching convex end specifications – compatible with 28mm (small), 33mm (medium), 36mm (large), and 42mm (XL) models. Features the signature convex/curved end (凸头) that seamlessly integrates with the Ballon Bleu's distinctive pebble-shaped case architecture. Crafted from premium calfskin leather with an embossed bamboo crocodile grain pattern – delivering the look and texture of exotic crocodile at an accessible price point. The perfect luxury upgrade for your Ballon Bleu – for both men and women.
Available for All Ballon Bleu Sizes – Specifically engineered for the full range of Cartier Ballon Bleu de Cartier references:
28mm small models – 14mm / 8mm convex end (quartz ladies' models)
33mm medium models – 16凸8.5mm convex end (ladies' quartz/auto)
36mm large models – 18mm /11mm convex end (unisex automatic)



















42mm XL models – 20凸12mm convex end (men's automatic)
Exquisite Bamboo Crocodile Grain Pattern – Features a premium embossed bamboo crocodile texture (竹节鳄鱼纹) that replicates the natural grain of genuine crocodile leather. The unique bamboo-style grain adds rugged elegance – perfectly complementing the Ballon Bleu's rounded, pebble-like case design. The embossed texture is subtle yet refined, with natural-looking scale patterns that are irregularly spaced – just like real crocodile skin.
Premium Calfskin with Crocodile Embossing – Crafted from high-grade calfskin leather with a precision-pressed bamboo croco pattern – ensuring long-lasting detail with no cheap peeling or fading. The embossed texture features natural-looking scale patterns that mimic the irregular spacing of genuine crocodile skin. The leather is durable, flexible, and develops a beautiful patina with wear. The soft leather lining ensures all-day comfort and a luxurious feel.
Convex End for Seamless Fit – Features the signature convex/curved end (凸头) that mirrors the rounded, pebble-like curves of the Ballon Bleu case. Ensures a flush, OEM-quality fit – no awkward gaps or protrusions. Each size features the exact convex specification matching the original Cartier design.
Compatible with Original Buckle – Designed to work with your original Cartier deployant clasp or pin buckle. Simply swap the strap and reuse your existing hardware – no need to purchase additional accessories. Buckle not included – strap only.
Universal Wrist Fit – Available in standard and short lengths to fit most wrist sizes from 5.5'' to 8.3'' (140mm–210mm) . Suitable for both men and women.
OEM-Spec Alternative – Precision-crafted to match original Cartier specifications. A cost-effective solution compared to OEM Cartier straps. Note: These are aftermarket replacement parts, not genuine Cartier® parts.
Easy Installation – Direct replacement for the original strap. Quick-release spring bars allow for effortless installation in seconds. Complete with spring bars included.