Rare Cartier Tortue Perpetual Calendar Platinum W1540551 | Calibre 9421 MC
Basic Information
| Specification | Details |
|---|---|
| Brand | Cartier |
| Collection | Tortue |
| Model | Tortue |
| Reference Number | W1540551 |
| Year of Production | Unknown |
| Condition | Used (Very Good) |
| Availability | In Stock |
| Scope of Delivery | Original Box, No Original Papers |
Movement
| Specification | Details |
|---|---|
| Movement | Automatic (Self-Winding) |
| Caliber | Cartier Calibre 9421 MC |
| Power Reserve | Approximately 42 Hours |
Case
| Specification | Details |
|---|---|
| Case Material | 950 Platinum |
| Case Dimensions | 34 mm × 43 mm |
| Bezel Material | Fixed 950 Platinum |
| Crystal | Scratch-Resistant Sapphire Crystal |
| Water Resistance | 30 m (100 ft) |
Dial
| Specification | Details |
|---|---|
| Dial Color | Silver |
| Dial Finish | Guilloché |
| Hour Markers | Roman Numerals |
Bracelet
| Specification | Details |
|---|---|
| Strap Material | Black Alligator Leather |
| Clasp | Deployment Buckle |
| Clasp Material | Platinum |
Functions
- Hours
- Minutes
- Perpetual Calendar
- Day Display
- Date Display
- Month Display
- Leap Year Indicator
Cartier Tortue Perpetual Calendar Platinum W1540551
The Cartier Tortue Perpetual Calendar Platinum W1540551 is one of the most sophisticated interpretations of Cartier’s iconic Tortue collection, combining an elegant shaped case with one of haute horology’s most prestigious complications. Crafted from 950 platinum, this exceptional timepiece features an automatic in-house movement, an exquisite silver guilloché dial, and a complete perpetual calendar, making it a highly desirable watch for discerning collectors.
Powering the Cartier Tortue Perpetual Calendar Platinum W1540551 is the Cartier Calibre 9421 MC, an automatic self-winding movement engineered to display the day, date, month, and leap year while automatically accounting for varying month lengths and leap years. The movement offers an approximate 42-hour power reserve, reflecting Cartier’s commitment to refined mechanical watchmaking.
The elegant 950 platinum case, measuring 34 mm × 43 mm, is paired with a fixed platinum bezel and protected by a scratch-resistant sapphire crystal. The beautifully executed silver guilloché dial, enhanced by Cartier’s signature Roman numeral hour markers, creates exceptional depth and timeless sophistication while maintaining excellent legibility.
Completing the watch is a luxurious black alligator leather strap secured by a platinum deployment buckle, perfectly complementing the precious metal case. Offered in used (very good) condition, this Cartier Tortue Perpetual Calendar Platinum W1540551 includes its original Cartier presentation box but is supplied without the original papers.
Combining an in-house automatic movement, a perpetual calendar complication, and an elegant platinum Tortue case, the Cartier Tortue Perpetual Calendar Platinum W1540551 represents one of the finest examples of Cartier’s high-end complications and remains an exceptional acquisition for collectors seeking both rarity and enduring horological excellence.













