Genuine original factory data distinguishes itself from market imitations! This is the highest version available on the market, supporting any comparative testing certificates, with each piece uniquely numbered and available for re-examination! Equipped with the Cartier 157 exclusive movement, it is truly consistent in every detail from inside to out! The case back, tag, and warranty card are all integrated with a unique code for each piece!.It Must be a TANK. Among all the classic Cartier Tank watches, if I were to choose one as my daily wear, I would definitely pick the TANK Solo. However, this might change with the latest TANK MUST launched in 2021. This year, the brand introduced the brand-new Tank Must series of watches, which also features the brand's signature square case in medium size 33.7mm x 25.5mm, small size 29.5mm x 22mm, and a thickness of 6.6mm. It is adorned with 40 pieces of VVS-quality diamonds, weighing approximately 0.48 carats, with a silver-plated dial and Roman numeral markers, and the brand's signature sword-shaped blued steel hands. The watch features a sapphire crystal glass and a unique natural blue spinel set in the crown. The case design is smoother and more rounded compared to previous models, made from 316L stainless steel with polished and brushed finishes. Additionally, the watch is equipped with a quick-release strap feature, greatly enhancing comfort and convenience for everyday wear, making it a great choice for both gifting and personal use.