Olivier Mory, a watchmaker based in La Chaux-de-Fonds, developed a tourbillon regulator movement exclusively for Louis Erard, now paired with Alain Silberstein’s signature hands.
Louis Erard today introduces the Louis Erard x Alain Silberstein Tourbillon Régulateur Blue. With the Smile-Day Blue, it opens the Hall of Fame, a new permanent collection produced in limited annual quantities.

Minutes are shown at the centre and hours at 12 o’clock, echoing the Smile-Day. At 6 o’clock, the blue sunray dial opens onto the tourbillon, whose cage turns once every 60 seconds.
The hand-wound BCP T02 calibre has approximately 100 hours of power reserve, in a 40mm case of microblasted titanium. The heathered blue strap has no buckle or pin, and closes with a hook-and-loop fastening.
“Our collaborations with Alain Silberstein are never ordinary. They are stories to be worn on the wrist, where every detail matters,” says Manuel Emch, who leads Louis Erard.
It shares its dial language with the Smile-Day, and its own place in a collection made a little at a time, every year.

The Basics
- Brand Louis Erard x Alain Silberstein
- Model Tourbillon Régulateur Blue
- Reference 89356TT05.BTT90
- Diameter 40mm
- Thickness 11.80mm
- Case material Microblasted grade 2 and polished grade 5 titanium; transparent caseback engraved “LE x A S”; red lacquered crown
- Dial Blue sunray; hour counter at 12 o’clock; cut-out at 6 o’clock showing the tourbillon; white silver opaline flange with blue and red indexes; Alain Silberstein signature hands
- Water resistance 10 bars (100m / 330 ft)
- Strap Heathered blue nylon and microblasted grade 2 titanium; hook-and-loop fastener
- Limited edition 50 pieces per year (Hall of Fame, permanent collection)

The Movement
- Calibre BCP T02, hand-wound tourbillon regulator, developed by Olivier Mory
- Functions Hours in a counter at 12 o’clock, central minutes, seconds in a counter at 6 o’clock; tourbillon
- Winding Manual
- Power reserve Approx. 100 hours
- Frequency 21,600 vph (3Hz)
- Jewels 19
Images courtesy of Louis Erard.










