Back Cover Case Screws Replacement for Longines L4 La Grande
Product Overview
This precision-engineered replacement back cover case screw set is designed specifically for the Longines L4 La Grande Classique De stainless steel watch. Crafted for watch repair professionals and meticulous owners, these screws ensure a secure and accurate fit during case back installation or maintenance. Made from high-grade 316L stainless steel, they offer superior corrosion resistance and long-term durability compared to standard alloy screws. Whether you’re performing a routine service or restoring a vintage timepiece, these screws deliver the reliability and finish expected from a luxury Swiss watch. The set includes six screws, providing a complete solution for most repair scenarios.
Key Features
- Exact Compatibility: Designed exclusively for the Longines L4 La Grande Classique De model, ensuring a precise fit without modification or risk of cross-threading. These screws are not universal and are engineered to match the exact specifications of the original components, so they integrate seamlessly during reassembly.
- Premium 316L Stainless Steel Construction: Offers exceptional resistance to rust, oxidation, and daily wear, maintaining integrity in various environments and extending the lifespan of your watch. This medical-grade steel is widely used in high-end watchmaking due to its strength, biocompatibility, and ability to retain finish over time.
- Compact Precision Dimensions: Each screw measures 1.2mm in head diameter, 0.7mm in thread diameter, and 1.7mm in length—optimized for the delicate architecture of slim dress watches. These dimensions are critical for maintaining the low-profile design and structural balance of the La Grande Classique De series.
- Complete Repair Set: Includes six screws, allowing full replacement of all case back fasteners or providing spares for future use. Having a complete set on hand ensures you’re prepared for multiple service cycles without interruption.
- Professional-Grade Finish: Matches the aesthetic and functional standards of original Longines components, preserving the watch’s refined appearance. The gold tone is carefully calibrated to blend seamlessly with the watch’s existing hardware, ensuring visual consistency after repair.
Technical Specifications
- Compatible Brand: Longines L4 La Grande Classique De Watch
- Screw Dimensions: 1.2mm (head) × 0.7mm (thread) × 1.7mm (length)
- Material: 316L Stainless Steel
- Finish: Gold (matches original hardware tone)
- Quantity: 6 screws per package
Benefits & Use Cases
These replacement screws are ideal for watchmakers, collectors, and enthusiasts performing maintenance on the Longines L4 La Grande Classique De. They are particularly useful during water resistance testing, battery replacement, or movement servicing, where removing and reattaching the case back is required. The 316L stainless steel composition ensures that the screws will not degrade over time, even with repeated handling or exposure to moisture. Their precise threading and dimensions prevent damage to the case, reducing the risk of stripped holes or misalignment. For owners seeking to preserve the original integrity of their timepiece, these screws offer a factory-correct solution that upholds the watch’s elegance and functionality. The gold finish not only matches the watch’s aesthetic but also resists tarnishing, ensuring long-term visual appeal. Whether you’re a professional technician or a dedicated collector, this set supports the meticulous care your timepiece deserves.
Important Notes
Please verify your watch model before purchase to ensure compatibility with the Longines L4 La Grande Classique De series. These screws are not universal and are engineered specifically for this model. Due to the small size and precision required, installation should be performed using appropriate watchmaking tools to avoid damage. Using incorrect drivers or excessive force may strip the screw heads or damage the case threads. If you have any questions regarding fitment or use, customer support is available to assist. Your satisfaction is our highest priority, and we are committed to providing responsive service for any inquiries. We encourage you to reach out with any concerns—we’re here to help ensure a smooth and successful repair experience.
