Cecil Purnell - The Geneva Watch Auction: XIX featuring the Guido Mondani Collection Geneva Saturday, May 11, 2024 | Phillips
  • Manufacturer: Cecil Purnell
    Year: Circa 2017
    Reference No: CP.01RG Spherion
    Case No: 1-20 Blue execution
    Model Name: Spherion Tourbillon
    Material: 18k pink gold
    Calibre: Manual wind, calibre CP01, 30 jewels
    Bracelet/Strap: Rubber
    Clasp/Buckle: 18k pink gold with titanium blades deployant clasp signed CP
    Dimensions: 48mm Diameter
    Signed: Case, dial/movement and clasp signed
    Accessories: Accompanied by Purnell fitted box, undated guarantee, polishing cloth, key and outer packaging.

  • Catalogue Essay

    Cecil Purnell is all about tourbillons.

    The company is named after Cecil Purnell, a World War I veteran who studied watchmaking after being injured during the war and quickly became fascinated by Abraham-Louis Breguet and the tourbillon. Purnell was founded decades later in the mid-2000s by Cecil’s grandson, Jonathan Purnell.

    The present Spherion Tourbillon features the world’s fastest triple-axis tourbillon, which completes a full 360-degree rotation in eight seconds. The movement inside the Spherion Tourbillon was developed in partnership with the award-winning watchmaker Eric Coudray, who previously brought to life impressive tourbillon creations such as the Jaeger-LeCoultre Gyrotourbillon.

    The inner tourbillon cage of the Spherion completes more than seven rotations every minute, while the inner, middle, and outer tourbillon cages complete their individual rotation in eight seconds, 16 seconds, and 30 seconds, respectively. All cages are made of lightweight titanium, and the clearance between each individual cage is under 0.2mm. It took Coudray and Purnell more than two years to bring the Spherion Tourbillon to life.

    But the mechanics were just the start of the Spherion’s development. The unique three-dimensional architecture of Purnell’s triple-axis tourbillon created difficulties in finding the right case and sapphire crystal to house and best display the innovative CP.01 movement. Conventional suppliers of sapphire crystals turned Purnell away. When a sapphire crystal manufacturer willing to take the small-batch project on was finally found, it took an additional 14 months of work to finalize.

    In addition to sapphire crystal protecting the front and back of the watch, there’s an additional sapphire crystal window in the left caseband as well as at 12 and 6 o’clock, allowing an unobstructed view of the triple-axis tourbillon in action.


Ref. CP.01RG Spherion
An impressive, complicated, and three-dimensional pink gold wristwatch with triple axis tourbillon regulator, with guarantee and presentation box

Circa 2017
48mm Diameter
Case, dial/movement and clasp signed

CHF30,000 - 60,000 

Sold for CHF88,900

Contact Specialist

Alexandre Ghotbi
Deputy Chairman, Watches, Head of Watches, Europe, and Middle East

+41 79 637 17 24

Tiffany To
Head of Sale, Geneva

+41 79 460 55 88

The Geneva Watch Auction: XIX featuring the Guido Mondani Collection

Geneva Auction 11 - 12 May 2024