The Joyagoo Reddit community is a hub for Rolex enthusiasts where members collaborate to build an extensive authentication encyclopedia for the Rolex Submariner, also known as the "green water ghost" or "绿水鬼" in Chinese. This collaborative effort is facilitated through the Joyagoo Spreadsheet, which meticulously documents the core differences across various generations of the Submariner.One of the key features of the spreadsheet is the documentation of 20 core differences for each generation. For instance, it details the ceramic bezel gradient blue process of the 16610LV and the Chromalight luminescent coating decay cycle of the 126610LV. These details are crucial for collectors and enthusiasts to distinguish between authentic and replica watches.Seasoned players within the community regularly update what they call the "Black Market Premium Alert Table." This table is a valuable resource that combines global authorized store inventory data to generate a "Buy Timing Index." This index helps potential buyers understand the market dynamics and identify the optimal time to purchase their desired Rolex models.Additionally, the Joyagoo Spreadsheet includes a "Microscope Scale Comparison Module" that supports users in uploading their own photographs of the watch. The module then automatically detects the authenticity of the watch by comparing the scale details with known genuine features. This tool is a testament to the community's commitment to accuracy and the prevention of counterfeit products in the market.For more information and to access the Joyagoo Spreadsheet, visit the external link: Joyagoo Sale. Here, enthusiasts can delve deeper into the world of Rolex Submariner authentication and stay updated with the latest community insights and tools.