A close-up view of a silver wristwatch with a black strap against a red background.
A close-up view of a silver wristwatch with a black strap against a red background.

A Familiar Shape, a New Rhythm

Rolex Day-Date 36 “Puzzle Dial”

Cartier Privé Tortue Monopusher Chronograph

Reference WHTO0008 | Platinum | 2025

The Tortue Monopusher Chronograph places a mechanically involved complication within a shaped Cartier case. This platinum example, dated 2025, belongs to the Cartier Privé collection and an edition of 200 numbered pieces.

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  • Edition: Limited to 200 numbered pieces

    Case: Platinum 950/1000

    Case dimensions: 43.7 × 34.8 mm

    Case thickness: 10.2 mm

    Dial: Silvered opaline

    Hour markers: Applied rhodium-plated Roman numerals

    Hands: Blued steel pomme hands

    Crown: Faceted crown with ruby cabochon

    Crystal: Sapphire

    Case back: Sapphire-crystal display back

    Straps: Burgundy semi-matte alligator and grey shiny alligator, both interchangeable

    Buckle: Platinum pin buckle

    Water resistance: 3 bar / approximately 30 metres

  • Calibre: Cartier Manufacture calibre 1928 MC

    Winding: Manual

    Functions: Hours, minutes and chronograph

    Chronograph: Monopusher, column-wheel construction

    Chronograph indication: Small seconds at 9 o’clock and chronograph minutes at 3 o’clock

    Power reserve: Approximately 44 hours

    Frequency: 28,800 vibrations per hour (4 Hz)

    Movement diameter: 12¼ lignes

    Movement thickness: 4.32 mm

    Jewels: 24

  • Box & papers: Complete with box and papers

    Additional strap: Both straps supplied

Close-up of a Cartier wristwatch with a white dial, Roman numerals, and a black leather strap with blue stitching, set against a red background.

The Tortue’s distinctive outline frames a chronograph operated by a single pusher. Platinum and a silvered dial keep the composition clear.

A View into the Mechanism

Through the sapphire case back, the manually wound calibre 1928 MC brings the chronograph mechanism into view. Column-wheel construction forms part of its technical character.

This is a useful second perspective on a watch whose shape is so immediately noticeable. The case establishes the first impression, while the movement gives the collector more to explore.

Close-up of a black leather watch strap with a shiny silver buckle on a red background.

One Point of Control

A single pusher operates the chronograph, giving its use a particular sequence and keeping the control concentrated in one place. On the dial, small seconds and elapsed minutes balance each other across the centre.

Applied Roman numerals and blued steel pomme hands retain a recognisable Cartier character. The chronograph adds function while working within that established visual language.

Close-up of a luxury Cartier skeleton watch with a visible mechanical movement, black leather strap with blue stitching, against a red background.

Colour in the Details

The silvered opaline dial and platinum case create a restrained setting for small accents of colour. Blued hands and a ruby cabochon crown provide points of distinction within it.

Two interchangeable alligator straps accompany this example, in burgundy and grey. They offer different ways to present the same watch while keeping its shaped case and dial at the centre.