Housed in an 18k rhodium-finish white gold case measuring 30 mm × 24 mm with a thickness of just 7.3 mm, the Tortue W1556361 carries Cartier's distinctive curved silhouette. The octagonal crown is set with a faceted sapphire, while the silvered guilloché dial features a sunray effect and sword-shaped hands rendered in blued steel.
Power comes from Cartier's mechanical Manufacture movement, caliber 8970 MC, wound manually. The watch is water-resistant to 30 meters and fastened by an ardillon buckle crafted in 18k rhodium-finish white gold.
The case sits on a black alligator skin strap, completing an ensemble that balances the architectural geometry of the Tortue case with understated, classic detailing.
