Product Overview
This precision-engineered replacement back cover case screw set is designed specifically for the Longines L4 La Grande Classique De Watch. Crafted for watch repair professionals and enthusiasts alike, these screws deliver a secure and accurate fit when reassembling the watch casing. Manufactured from high-grade stainless steel, they provide lasting durability and strong resistance to corrosion, ensuring your timepiece remains protected and functional over time. Each package contains exactly six screws—the precise number required for a complete back cover installation on compatible Longines models. Whether you’re replacing a lost screw, addressing a stripped thread, or performing routine maintenance, this set offers reliable performance and peace of mind. Ideal for battery replacements, movement servicing, or gasket inspections, these screws help maintain the watch’s original integrity and sealing capability.
Key Features
- Precision Fit for Longines L4 Models – These screws are engineered to exact factory specifications for the Longines L4 La Grande Classique De Watch, ensuring seamless compatibility and a tight, secure seal when reinstalling the back cover. Their design matches the original components, minimizing the risk of cross-threading or misalignment during installation.
- Premium Stainless Steel Construction – Made from high-quality stainless steel, the screws resist rust, tarnish, and everyday wear. This material choice ensures long-term reliability and helps preserve the appearance of your watch, even after repeated use or exposure to moisture.
- Exact Size Matching – With precise dimensions of 1.4mm (head diameter) x 0.9mm (shaft diameter) x 2.5mm (length), each screw aligns perfectly with the original factory parts. This eliminates guesswork and guarantees a flush, professional finish after reassembly, maintaining the sleek profile of your timepiece.
- Complete 6-Piece Set – The package includes six screws, which is the standard quantity required to securely fasten the back cover on the Longines L4 La Grande Classique De Watch. This means you receive everything needed in one convenient purchase—no need to source individual screws or worry about running short.
- Trusted Quality and Support – Backed by over a decade of experience in providing high-quality watch parts and accessories online, this product comes with a 100% satisfaction guarantee. If you have any questions about compatibility, installation, or performance, customer support is readily available to assist.
Technical Specifications
- Compatible Brand: Longines L4 La Grande Classique De Watch
- Material: Stainless Steel
- Screw Dimensions: 1.4mm (head diameter) x 0.9mm (shaft diameter) x 2.5mm (length)
- Quantity Included: 6 screws per package
- Type: Mechanical back cover case screws
Benefits & Use Cases
These replacement screws are essential for anyone maintaining or repairing a Longines L4 La Grande Classique De Watch. Whether you’re a professional watchmaker, a skilled technician, or a dedicated collector, this set ensures your timepiece remains in optimal condition. Common applications include replacing lost or damaged screws during back cover removal for battery changes, internal movement servicing, or replacing worn gaskets to restore water resistance. The precise threading and exact dimensions help maintain a proper seal, which is critical for preserving the watch’s structural integrity and protecting its internal components from dust and moisture. Because the screws are made from stainless steel, they are less prone to seizing or corroding over time—reducing the risk of damage during future disassembly. This makes them a practical and cost-effective choice for long-term watch care. Their reliability also supports consistent performance, giving you confidence that your watch will remain securely assembled through daily wear and periodic servicing.
Important Notes
These screws are specifically designed for the Longines L4 La Grande Classique De Watch and may not be compatible with other watch models or brands. Always confirm your watch’s model number before purchasing to ensure a proper fit. The screws are mechanical and require careful handling during installation; using the correct screwdriver size is strongly recommended to avoid stripping the screw heads. The package contains exactly six screws—the standard number needed for this model—so no additional screws are included. If you’re unsure about compatibility or need guidance on installation, customer support is available to help. All products are backed by a 100% satisfaction guarantee, reflecting the seller’s commitment to quality and customer care. With over ten years of experience in selling premium watch parts online, the brand stands behind every product it offers.




