New model 33 mechanical watch, Cartier Ballon Bleu, featuring a Swiss-made Eta2671 movement. The case is adorned with 50 VS1.5 natural diamonds and is GTC certified. Initially, I was hesitant to get this product. While mechanical watches are considered more high-end compared to quartz watches, many people do not fully understand how mechanical watches work. This often leads to more issues due to operational or common knowledge problems, and the profit margins are not as high as those for quartz watches. This type of watch may seem like a thankless effort, yet there are still many enthusiasts who prefer mechanical models. This highlights the difference between a practical item and a work of art; whether quartz or smartwatches, they are fundamentally practical items. Although these watches are produced through mechanized mass production or modern assembly lines, they are all simply referred to as watches. However, the distinction between art pieces and practical items is quite clear and significant.We have sold many quartz Ballon Bleu watches, and I believe everyone is aware of the quality we offer. You won't feel any pressure when you take it to a boutique for service; even if you go to adjust the strap length, the long-term staff at the boutique may not even notice the difference. So you can wear it confidently!.A few notes on mechanical watches: This model is an automatic wind watch from Cartier, which derives its power from the movement of the wearer's arm. Under normal wearing conditions, manual winding is not necessary. However, if the wearer does not move enough to provide sufficient energy for the mainspring, manual winding may be required. This is a common misconception among those unfamiliar with mechanical watches, who often think there is a problem with the watch.Additionally, to prevent moisture from entering the case and to maintain its waterproof performance, always ensure the crown is securely locked after making adjustments. It's also important to note that waterproof watches are only water-resistant for daily use; they may not hold up against hot water, so you may want to look up relevant information on that! The watch comes in packaging that rivals the highest market versions, making it a great gift choice!