Le Régulateur Louis Erard x Vianney Halter II 'World Tour'

The Louis Erard x Vianney Halter II goes monochrome + edited color-coded seconds hand versions dropped across road tour events

Le Régulateur II is back on stage, same unmistakable design, same electric blued steel hands, now sharper than ever with a new silver monochrome dial. But this time, it’s more than a watch drop, it’s a world tour. Because when we said Louis Erard was turning sales into events and shaking up the norms again… we weren’t kidding! 

Vianney Halter and Manuel Emch are taking flight for a horological road tour: exclusive city drops, backstage access and a piece that adapts with every stop. Limited drop. No restocks. Be fast or miss the set. So, you can either grab the monochrome edition from home or head to the city where your favorite version drops.

Watch facts that matter

What's new

• Main colors: monochrome silver dial, matching subdials, and a blue leather strap, which complements the blued steel hour and minute hands.

• Distinctive color: a different color-coded seconds hand for each city.

• Motto: "Live long and prosper," Vianney's motto, which is engraved in different languages depending on the city's edition.

• Limited edition: 178 monochrome editions, plus 178 released in drops of 18 to 25 limited units in each city on the tour.

What stays

• Steampunk DNA: Inspired by Vianney Halter's iconoclastic Antiqua.

• Industrial Edge: Features red-gilded rivets, a riveted bezel, and an offset crown at 2 o'clock.

• Deconstructed Display: Includes signature split-time subdials.

• Haute Horlogerie Finishing: Showcases polished and diamond-cut angles, along with circular and vertical satin brushing.

Around the world. One city, one second at a time.

The Regulator II isn’t about telling time. It’s about owning it. Bending it. Color-coding it. And taking it global. Which color is yours? Which city calls your name? Better decide fast, this tour doesn’t do replays. Every city of the World Tour gets its own customed color seconds hand and Vianney Halter’s legendary motto, “Live Long and Prosper”, is adapted in different languages, engraved on the case back.

Vianney’s edge. Louis Erard’ stage. The story behind the tour.

This is more than a collab. It’s a creative collision between Vianney Halter, master of Steampunk horology and Louis Erard’s signature Regulator. It is more than telling time. It’s about taking it. The result? A deconstructed watch that keeps the iconic 1998 Antiqua’s design, made to be worn daily, collected obsessively. You might just end up chasing every seconds hand color. Each drop hits like a rare sneaker, limited time, one city, one point of sale. We turn every city into a stage, every release into an event and every second into something worth hunting.” Manuel Emch

First stops announced. Pick your color, pick your city. We’ll see you there!

23.09.2025. Worldwide edition.
Blued seconds hand
Case back engraved with “Louis Erard x Vianney Halter Limited Edition 1 of 178“
Limited run of 178 pieces

23.09.2025. Takamatsu, Japan. Eye Eye Isuzu.
Rhodium seconds hand matching the tone of the dial.
Case back engraved with “Longue vie et prospérité“
Limited run of 25 pieces

24.09.2025. Bangkok, Thailand. PMT The Hour Glass
Anthracite seconds hand
Case back engraved with “Live long and prosper”
Limited run of 18 pieces

26.09.2025. Hong Kong. The Lavish Attic
Purple seconds hand
Case back engraved with “Live long and prosper“ in Chinese.
Limited run of 25 pieces

30.09.2025. Singapore. The Hour Glass
Red-gilded seconds hand
Case back engraved “Live long and prosper”
Limited run of 25 pieces

More cities and dates coming soon.

Technical specifications

Le Régulateur Louis Erard x Vianney Halter II - Worldwide

Reference: 85246AA01.BVA180

Limited edition of 178 pieces

Case

• Material: Polished and circular satin-brushed stainless steel
• Diameter: 43 mm
• Thickness: 10.95 mm
• Lug to lug : 49.60 mm
• 12 polished red-gilt 5N rivets around the bezel
• Glass: Sapphire crystal with anti-reflective treatment on both sides
• Vianney Halter signature crown with 24 red-gilt 5N rivets
• Movement visible through the transparent caseback
• Caseback engraved with the inscription « Louis Erard x Vianney Halter Limited Edition 1 of 178 »
• Water-resistant to 5 bar pressure (50 m / 165 ft)

Dial and hands

• Rhodium-plated and circular satin-brushed with diamond-polished chamfers chapter ring & counter rings
• Rhodium-plated base with a vertical satin-brushed finish, black transfers
• Louis Erard logo at 2 o’clock and Vianney Halter logo at 8 o’clock
• Dial designed by Vianney Halter with his artistic identity
• Vianney Halter signature hands in blued steel

Movement

• Automatic regulator, Sellita caliber SW266-1
• Diameter: 11 ½ lignes, 25.60 mm
• Thickness: 5.60 mm
• Number of jewels: 31
• Frequency: 28'800 vph (4Hz)
• Meticulously decorated, special openworked oscillating weight with black lacquered Louis Erard symbol
• Power reserve of min. 38 hours

Functions/Indications

• Hours, minutes, seconds:
• Hours counter at 11 o’clock, central minutes hand, seconds counter at 5 o’clock

Strap and buckle

• Dark blue grained calf leather strap with tone-on-tone stitching, black lining grained calf leather
• Polished stainless steel pin buckle, ergot bars for quick strap change
• Dimensions: 22/20mm width, 80/115 mm length

MSRP: CHF 4'500

For more information, please visit louiserard.com