JEAN ROUSSEAU leather belt. *Watch strap only for sale. The surface is cowhide, and the back is orange rubber. The stitching is saddle stitching, often used for HERMES Birkin and Kelly bags. Saddle stitching is a durable hand-sewing technique where needles are attached to both ends of a single thread and sewn alternately from the front and back. Quick-release lever: Can be installed simply by sliding the lever without using tools. The buckle type is a deployant buckle. It can be easily removed from the leather strap and used on other belts. Enjoy your leather strap watch even in summer without worrying about sweat or water. Reference watch: Cartier Tank Must Watch LM Model number: WSTA0041 Case diameter: 33.7 x 25.5 mm Lug width: 19mm The belt's lug width is 19mm, so it can be used on the current Tank Must de Cartier Watch Large Model and Tank Louis Cartier, in addition to the Tank Must. Color: Black系 (Black-based) "Jean Rousseau" is a brand based in Besançon, France, known for manufacturing high-end leather goods, especially watch straps. It originally started by supplying products to famous Swiss watch manufacturers, and now handles everything from leather selection to product manufacturing in-house. In addition to watch straps, they also make wallets, business card holders, bags, and more. ・Brand origin and features: Founded in France in 1954, it started as a leather watch strap manufacturer for Swiss watch brands. ・Integrated manufacturing process: A major feature is that all processes, from leather selection, processing, dyeing, finishing, to product manufacturing, are completed in-house. This integrated system allows for thorough cost and quality control and flexible customization. ・Product range: The main product is watch straps, but in recent years, they have expanded to a wide range of products, including leather accessories such as wallets, waist belts, and business card holders, as well as bags. Materials and innovation: They use a variety of materials such as alligator and salmon leather and pursue functionality that goes beyond conventional limits, such as water resistance. ・Evaluation: Its outstanding craftsmanship has received high praise, including being awarded the "Living Heritage Company" label for the first time in 2007.