Louis Erard x Konstantin Chaykin Unfrogettable

Once upon a time… No, this is once upon a twist. Louis Erard and Konstantin Chaykin are back, to flip the script, twist traditions and leap over conventions with a grin. Yes, it really jumps out at you. Introducing the Unfrogettable.

Horizontal regulator display with rotating eye discs that follow time with a stare.
Reworked case: slimmer, smaller and forged in Grade 5 titanium: 40mm wide, just 12.45mm thick.
Details with a wink: crown at 12 o’clock (because it’s a princess after all) and a hidden love note: Louis Erard.

A Frog Princess like you’ve never seen before. Born of Slavic myth, suited in samurai armor, built in the Swiss Jura. A fully reworked case. A regulator turned creature. A spell you can wear. Powered by Chaykin’s ingenious mind and Louis Erard’s rebellious spirit. The result? Something no one asked for, but no one will forget. Beyond the fun, precision. Beyond the madness, mastery.

Eyes wide open. Pupils alert. Staring right at you. The iconic Louis Erard regulator display takes a turn, flipping horizontally. Hours at 9 o’clock, seconds at 3 o’clock and an arrow-shaped minutes hand cutting through the center as a nod to the Frog Princess tale.

As time ticks, pupils spin. The watch face comes alive. The dial plays with contrasts: violet or forest green grained base, matching lacquered nostrils and a dual-tone minutes ring with a red section printed with the inscription Louis Erard Konstantin Chaykin. A not-so-secret love note. Because what’s a fairytale without a little love?

The case has been entirely reworked in Grade 5 titanium, making it both light and robust. 40mm in diameter, just 12.45mm thick. Its surfaces alternate between polished and satin-brushed finishes.

The crown? Shaped like a crown, because this frog rules. Ironic, iconic, it’s meant to make you smile.

The strap is not a princess gown, but armor: Himeji Kurozan leather, hand-rubbed and Urushi-lacquered, black cowhide with violet or green stitching and a matching vivid inner lining.

With Konstantin, we’re beyond a simple collaboration, it’s a creative partnership and friendship. Two independent houses who aren’t afraid to shake things up. Honoring tradition and adding a grin. We break the mold, stir the myth and make you smile while thinking twice. Our new character is the Unfrogettable. It’s more than a face; we went beyond the dial, the hands, the crown. We’ve done tourbillons. We’ve done complications. So, this time, we reworked the case, shaped new surfaces in titanium and designed a strap made from the same lacquered leather once used in samurai armor. Every detail has meaning. The frog, in Russian tales, is a spell in disguise. In Japan, it symbolizes luck and resilience. Put them together and you get a hybrid, a frog with a warrior’s heart. This watch is playful and a little crazy, yes, but behind the mischief is serious horology. It’s a full story told through mechanical craft, with a twist.” - Manuel Emch.

Louis Erard x Konstantin Chaykin Unfrogettable Green Ref. 85340AA01.BVA191

Technical specifications

Louis Erard x Konstantin Chaykin Unfrogettable Green

Reference: 85340AA01.BVA191

Limited edition of 178 pieces

Case

Material: Satin-finished and polished Grade 5 titanium
Diameter: 40 mm
Thickness: 12.45 mm
Lug to lug: 46.50 mm
Sapphire crystal with anti-reflective treatment on both sides
Polished Grade 5 titanium crown inspired by a royal crown, with 2N PVD treatment
Movement visible through the transparent case back
Caseback engraved "LOUIS ERARD KONSTANTIN CHAYKIN 1 OF 178"
Water-resistant to 5 bar (50 m / 165 ft)

Dial and hands

Dark green and red hour ring with light green and light pink transfers
Lower plate in light green with grained finish
Dark green lacquered nostrils
Dark green circular satin-finished hour and seconds rings with light green transfer markers
Louis Erard and Konstantin Chaykin logos in white transfers at 6 o’clock
2N-plated hour and minute discs with matte and satin finishes
Black-lacquered pupils, and SLN C5 green luminescent accents
2N-plated arrow-shaped minute hand with SLN C5 green luminescent tip

Movement

Automatic regulator, Sellita SW266-1 calibre
Diameter: 11½ lignes, 25.60 mm
Thickness: 5.60 mm
Number of jewels: 31
Frequency: 28,800 vph (4Hz), élaboré grade movement
Special openworked oscillating weight with black lacquered Louis Erard symbol
Power reserve of approx. 38 hours

Functions/Indications

Hours hand in a counter at 9 o'clock, central minutes hand, seconds hand in a counter at 3 o'clock

Strap and buckle

Black Himeji Kurozan leather, also known as black diamond leather.
Hand-rubbed black calf leather, naturally tanned and finished with Urushi lacquer.
Matte and glossy finishes, green stitching on the lugs, green rabbit leather lining
Polished Grade 5 titanium pin buckle with satin-finished “LE” logo plate, quick-release spring bars for easy strap change.
Dimensions: width 20/18mm, length 80/115mm

MSRP: CHF 4'500 (excl. taxes)

Louis Erard x Konstantin Chaykin Unfrogettable Purple Ref. 85340AA02.BVA192

Technical specifications

Louis Erard x Konstantin Chaykin Unfrogettable Purple

Reference: 85340AA02.BVA192