Authentic original factory data, distinguishing it from market replicas! The highest version available on the market, supporting any comparative testing certificates, with a unique serial number for each piece, allowing for re-inspection! Equipped with the Cartier 157 dedicated movement, truly consistent from the inside out! The case back, tag, and warranty card are all integrated with unique individual codes!.It Must be a TANK. Among all the classic Cartier Tank watches, if I were to choose one for daily wear, I would definitely select the TANK Solo. However, this may change with the latest TANK MUST introduced in 2021. This year, the brand launched the new Tank Must series of watches, featuring the brand's iconic rectangular case measuring 33.7mm x 25.5mm and a thickness of 6.6mm, set with 40 VVS-grade diamonds weighing approximately 0.48 carats. The dial is silver-plated with Roman numeral markers, and it boasts the brand's signature sword-shaped heat-blued steel hands, sapphire crystal glass, and a unique natural blue spinel set in the crown. The case design is more rounded and smooth compared to previous models, crafted from 316L stainless steel with polished and brushed corners. Additionally, the watch features a quick-release strap function, greatly enhancing comfort and convenience for daily wear. It's a great choice for both personal use and gifting!