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Among the Santos-Dumont series, the masterpiece slim model "Extra-Flat" is equipped with the Frédéric Piguet Cal.21, making it a popular model among enthusiasts. The "Swiss Made" dial with guilloché is rare. This particular model has been serviced in Cartier's home country, comes with a warranty, and is in excellent condition.
The CPCP Santos Extra-Flat model from the 2000s was based on this model, and its size and construction are almost identical. The movement has also been replaced with a new Cal.21 through a complete service, and the guilloché pattern on the dial is the same as that of the CPCP model. The only differences seem to be the "Cartier Paris" notation and that this model has a slightly more ivory-toned, vintage-looking dial. While both are a matter of preference, this model might be more appealing to those who prefer a vintage-looking dial.
The Cartier complete service was completed in June 2024, and it is an item in excellent condition. The case has undergone almost no polishing. There are minor scratches on the case and bezel, but they have been left as is. The edges are sharp. The original case condition has been maintained and is in a beautiful state. There are some light dents on the case back, but they have been left as is to maintain originality. The dial has been replaced during the Cartier home country repair. The original guilloché Swiss dial has become a guilloché "Swiss Made" dial. The specifications are almost the same as they were then. The hands and crown have also been replaced with new ones, making this an item in excellent condition. The movement is also a new Cal.21, making it highly reliable.
The buckle is genuine Cartier GP. If you wish for an 18k YG D-buckle or an 18k YG buckle from that period, please contact us separately.
《Product Details》
Brand Name: Cartier
Product Name: Officially Serviced Santos-Dumont LM Extra-Flat Guilloché Dial
Movement: Manual Winding
Caliber: Cal.21 Frédéric Piguet
Material: K18YG
Serial: 821054####
Color: Gold
Case Diameter: Approx. 27mm wide x 36mm high, bracelet up to 17.5cm
Buckle: Genuine GP
Strap: New aftermarket
Accessories: Our warranty certificate, Cartier repair certificate
The personal information section of the Cartier repair certificate will be redacted and included.
This is an officially serviced item. We can also provide maintenance after purchase.
~Product Rank~
【A】Shows slight signs of wear, but no major noticeable flaws.
【B】Shows noticeable scratches/stains to some extent.
【C】Has significant scratches/stains.
【D】Has problems with use.
*The rank is solely based on our subjective assessment.
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Things to Confirm Before Purchase
If you would like the bracelet-style wrist size adjusted, please contact us in advance. Additional links may be purchased for an extra fee, subject to availability.
As these are vintage items, care instructions vary by product. If you have any questions, please contact us individually.
This is an important purchase for you.
Please check our Frequently Asked Questions page.
Including shipping and insurance: 38,000 (JPY) Additional customs duties may apply. Please check the additional charges in advance before placing your order. Under Japanese law, crocodile exotic leather cannot be shipped. We can change it to cowhide for shipping. Please contact us for details.
ANTEの安心サポート
We carefully select and service each watch to ensure that you can use it with as much peace of mind as possible.
However, precisely because these watches have stood the test of time, they also have characteristics that differ from those of modern new watches.
We hope you will enjoy these qualities as well.
Because these vintage pieces have been treasured and passed down over the years, we carefully inspect their interiors and verify their authenticity.
We ship items domestically and internationally.
Once your order has been shipped, you will receive a tracking number.
First-time online shoppers can use our service with confidence.
In Tokyo’s Ginza district, you can view the items you’re considering in person.
Ante excels at providing consultations and guidance tailored to each customer’s individual needs. Please feel free to contact us about the situations in which you plan to use the product or any concerns you may have when making your purchase. We are happy to answer a wide range of questions, including the product’s benefits and points to note.




