The inner tourbillon cage of Spherion’s triple-axis tourbillon makes more than seven rotations each minute (less than eight seconds); the inner, middle and outer tourbillon cages all rotate at higher velocities than previously attained in a triple-axis tourbillon: 8 seconds, 16 seconds, and 30 seconds respectively.

This sensational technical achievement is worthy of an equally spectacular case to highlight the triple-axis tourbillon. C. Purnell developed a highly complicated and unusual sapphire crystal, which added more than a year to the development of the Spherion; creation of this sapphire crystal required fourteen months of research and development to acquire the optimal shape and quality.

Crystal Window

The result is an astonishing sapphire crystal window with a vertical wall at 6 o’clock stretching all the way to the bottom of the case to provide an unimpeded view of the multi-axis tourbillon. The complex case and crystal design are both critical features for optimally displaying the tourbillon in action.


Spherion is presently available in a choice of polished, satin-blasted or black DLC-coated grade 5 titanium, 18kt rose gold, or 18kt white gold, and comes with a three-year warranty extendable to five years by registering with C. Purnell.

Spherion Technical Specifications

The C. Purnell Spherion is a high-speed triple-axis tourbillon designed and developed by C. Purnell in collaboration with master watchmaker Eric Coudray and TEC Ebauches. The Spherion, fully customizable, is available in either gold or titanium.

Caliber CP01
Triple-axis tourbillon skeleton movement developed with Eric Coudray and TEC Ebauches, hand winding with twin mainspring barrels in parallel
Power reserve
40 hours
Balance frequency
3Hz / 21,600 bph
Number of components
Number of jewels
Movement dimensions
37.5 mm x 13.3 mm
Movement weight
15.7 grams
6 positions
30-second triple-axis tourbillon
Rotation of outer cage
30 seconds
Rotation of middle cage
16 seconds
Rotation of inner cage
8 seconds
Tourbillon assembly weight
0.79562 grams
Shock protection
8 Incabloc systems

Black ruthenium dial with hand-polished rhodium-plated hands, finished with hand-applied lacquer and displaying hours and minutes


Unique case available in choice of 18kt rose gold or white gold, polished or satin-blasted grade 5 titanium, or black DLC-coated titanium

48 mm x 19 mm
Water resistance
3 atm / 30 m / 90’
Number of case components
Sapphire Crystals

Custom wraparound sapphire crystal with additional window on edge of case at 12 o’clock. Sapphire crystal drapes over edge of case at 6 o’clock providing an unobstructed view of the triple-axis tourbillon. Double anti-reflective coating on front, single anti-reflective coating on rear

Strap & Buckle

Genuine crocodile or silicone rubber with gold, titanium or black DLC-coated titanium to complement case


Prices start from CHF 285,000