Petite Seconde Rétrograde Tourbillon
domed saphhire crystal with anti-reflection treatment on both sides
5 ATM / 50 m
Manufactured tourbillon automatic "Irreversible" TSE 122.00 with micro rotor
30.40 mm (13 ¼’’’)
Off-centered hours and minutes indication at 5 o'clock
Small second retrograde at 11 o'clock
Tourbillon at 1 o'clock
3 Hz (21'600 Alt/h)
hours, minutes indicator and retrograde seconds with turquoise-blue Lapis Lazuli fine stones
rhodium-treated brass with Super-LumiNova®
full skin black alligator, hand-sewn with turquoise-blue alligator lining
stainless steel folding buckle with Schwarz Etienne logo
30.40 mm (13 ¼’’’)
Main plate : fine sandblasted
Mobiles (wheels): circular graining
Complication bridges: étirage finish, hand bevelling and satin finishing
Tourbillon cage: Fold locked and circular graining
Retrograde lift : étirage finish, hand bevelling and satin finishing
Micro-rotor: hand bevelling and micro-blasting
Côtes de Genève
Schwarz Etienne leather straps are manufactured by saddlers from the finest leathers. Each strap is handmade and hand stitched. An elegant and original signature, they are lined with leathers of bright colors, as are certain suits.
Entirely manufactured in-house, including the hairspring, the balance wheel features an exclusive design feature. On balancing it draws the brand’s SE initials.
A high-end construction, the micro-rotor permits the integration of an ultra-compact automatic winding mechanism. For maximum efficiency, and despite its reduced diameter, winding is bidirectional. This elegant solution ensures the caliber can be admired in all its splendour. The oscillations of the micro-rotor on the dial side add dynamism to the design.
The La Chaux-de-Fonds Tourbillon PSR is enhanced with fine stones adding colour and a sense of depth to its face. The off-centre hours and minutes dial and the retrograde seconds’ indicator are fashioned out of green aventurine, anthracite hematite specularite, lapis lazuli or blue opal. Their delicate manufacturing requires extreme care, the cutting and the finishing of these stones demanding skill, precision and savoir-faire.
The La Chaux-de-Fonds Tourbillon case back is engraved with a gears motif. A small circular opening around the tourbillon reveals a captivating ballet from multiple angles, lending light to these exceptional mechanics.
A one-minute tourbillon movement with its micro-rotor on the dial side, incorporating, in a truly innovative way, a retrograde small-second. Its mechanism is built directly in connection with the tourbillon. A snail cam is mounted on the tourbillon arbor. A ratchet gear rests on this cam while the system is tensioned with a spring. This mechanism allows the small seconds’ hand to advance along an arc and then suddenly jump back to recommence at its starting point.
Because the cam is shaped in a constantly increasing diameter, there is little interference with the tourbillon’s performance, despite the retrograde seconds being directly mounted on its arbor.