Hautlence is off to an interesting start for Baselworld 2019 with the manufacture’s eithth caliber. The new HL Sphere reconnects with her original identity of offering innovative time displays. Following in the footsteps of earlier Hautlence watches with jumping hour disc and half-trailing hour chain, the new HL Sphere features a jumping hour that spins on a sphere.
Hautlence HL Sphere 01
A hint on the HL Sphere 01 was shown in SIHH earlier this year in the form of a Double Sphere Kinetic clock with jumping hour and minute spheres. See our Live from SIHH: Moser & Hautlence for a photograph of that clock.
A blue sphere occupies the left-hand portion of the case, magnificently showcased by a sapphire crystal with a small dome, attracting everyone’s attention. It features twelve engraved numerals and rotates on itself through three rotation axes to reveal the current hour. This hypnotic dance, which initially appears totally random, actually follows a strict choreography, dictated by four conical gears that move around two crossed spindles inclined at an angle of 21 degrees. Two polished titanium cases featuring a blue PVD treatment adorn this conical differential to create a yin and yang watchmaking composition that forms a sphere.
To the right of the sphere is a retrograde minute display with a hand that travels along a fine and elegant minute track that opens onto the movement and partly reveals the balance. This aperture brings the gear train into view, which slows down the course of the minute hand when it returns to zero, regulating its speed so as to reduce impact forces. The differential and snail used to trigger the jumping hour can also be seen beneath the minute hand. The minute track and the applied silvered diamond-polished minute numerals are fixed to an intermediary sapphire crystal dial with a smoked metallic finish that adds to the piece’s transparency.
The white gold case of the HL SPHERE adopts HAUTLENCE’s signature TV screen shape. Reworked to reinterpret the brand’s signature codes, the case has been enlarged and equipped with a wider opening on the dial, to truly highlight the complication. With its balanced proportions, the HL SPHERE model sits perfectly on the wrist. The white gold notched crown, engraved with the HAUTLENCE logo, is used to wind the watch and set the time. An alligator-leather strap, in the same blue shade as the sphere, adds the final touch to the piece.
The HTL 501-1 hand-wound calibre beats at the heart of the HL SPHERE model. Entirely developed, designed and produced by HAUTLENCE’s watchmakers, this movement is the perfect culmination of technical and aesthetic expertise. The skeletonised balance bridge allows the owner to admire the oscillations of the proprietary balance spring produced by Precision Engineering AG, HAUTLENCE’s sister company. The equally skeletonised drum and ratchet reveal the barrel spring, thereby providing a simple yet ingenious visual indication of the power reserve. The reliable HTL 501-1 calibre is fitted with a safety mechanism that prevents incorrect manipulation during reverse time setting, leading the movement to simply rotate freely without any risk of damaging the mechanism.
Hautlence HL Sphere 01 Specifications
Spherical hour and retrograde minute on a 180° sector HTL 501-1 hand-wound mechanical movement.
Display Spherical hour and retrograde minute on a 180° sector
Calibre HTL 501-1 hand-wound mechanical movement
Spherical hour and retrograde minute on a 180° sector
Hand-wound mechanical movement.
Power reserve: minimum of 3 days
Regulating organ: 21,600 vibrations / hour;
Number of jewels: 38; Front face finish: sand-blasted, components decorated and finished by hand Back face finish: sand-blasted, components decorated and finished by hand Case
Case middle and horns: satin-finished and polished white gold; Bezel: satin-finished and polished white gold Screws: steel, with polished heads
Crown: polished white gold with engraved HAUTLENCE logo
Crystal (TOP): extra-hard sapphire crystal with anti-reflective treatment, bevelling and dome; Back: satin-finished and polished white gold, 4 screws, engraved “HAUTLENCE”, “3 ATM WATER RESISTANT”, “Horlogerie Suisse”;
Crystal (BOTTOM): extra-hard sapphire crystal with anti-reflective treatment; Dimensions (excluding dome): 39 x 46 x 12 mm / 3.75 mm dome
Dial Base dial: skeletonised and rhodium-plated with engraved minute track.
Intermediate dial: Smoked metallic sapphire crystal and curved, diamond-polished rhodium-plated appliques.
Hour sphere: Polished grade 5 titanium with blue PVD treatment, laser engraved numerals and white lacquer filling.
Minute hands: Satin-finished grade 5 titanium with blue PVD treatment and white lacquer filling.
Strap Blue Louisiana alligator; domed, rubber-lined, full square scales, rolled-edge; Interchangeability spring bars;
Folding clasp: grade 5 titanium with satin-finished steel plate.
Water resistance 3 ATM
Limited edition 28 pieces