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Platinum CARTIER Tortue, 1920s

CHF 6,000


Very fine and rare Art Deco Platinum, 18k Yellow Gold & rose-cut Diamonds tonneau-shaped “Tortue” CARTIER, Paris, No. 8405 lady’s wristwatch, diameter approximately 30 mm x 22.5 mm. Completed by a black grosgrain ribbon strap and gold deployant clasp, accompanied by fitted Cartier box. Made circa 1920s.

C. Two-body, tonneau-shaped, solid platinum, polished, the bezel and lugs set with rose-cut diamonds, diamond set winding-crown, yellow gold back with 4 screws in the band. D. Matte white with painted radial Arabic numerals (restored), inner minute track. Blued steel “Epée” hands. M. Cal. JLC 818/3 (changed), rhodium-plated, 17 jewels, straight-line lever escapement, monometallic balance. Dial signed, case numbered by Cartier (matching numbers on the gold case back and platinum case). Dim. 23 x 30 mm. Thickness 6 mm.

Runs great and all functions work as expected. Please take a look at the photos for condition. Watch is in very good 8/10 condition, running and ready to wear or gift! A fine investment that is guaranteed to increase in value as the years go by.


Brand Cartier
Model Tortue
Reference N/A, SN: 8405
Year 1920s
Movement Manual winding
Calibre Cal. JLC 818/3
Case material Platinum 950, Gold 18k and old cut Diamonds
Case size 22mm X 30mm X 6mm
Bracelet Original black Cartier strap with 18k Gold deployant clasp
Features Platinum case, restored rare Arabic numerals dial
Box/Papers Fitted Cartier box, no papers.


In fully working order. Very good 8/10 condition, minor surface scratches and scuffs through the age. Around 20 years ago the dial was professionally restored/refinished by previous owner and the watch movement was changed to serviced Jaeger Lecoultre Cal. 818/3. The platinum case is in a great condition. Original black Cartier strap with authentic gold deployant clasp. Strap slightly worn. The watch comes with fitted Cartier box.


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