UNFROGETTABLE
READY TO KISS THE FROG?
Louis Erard x Konstantin Chaykin Unfrogettable Green
Technical specifications
Case
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Case material
Satin-finished and polished Grade 5 titanium
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Case diameter
40 mm
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Case back
See through
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Glass
Sapphire with anti-reflective treatment on both sides
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Water resistance
5 bars (50 m/165 ft)
Technical specifications
Dial & hands
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Dial
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
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Hands
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
Technical specifications
Strap
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Strap
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
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Buckle
Pin buckle
Technical specifications
Movement
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Calibre
Sellita SW266-1
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Movement
Automatic Regulator
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Functions
HMS
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Power reserve
Min. 38 hours
Louis Erard x Konstantin Chaykin
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85340AA01.BVA191
Louis Erard x Konstantin Chaykin Unfrogettable Green
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. 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.
Main features
40 mm Automatic Regulator Satin-finished and polished Grade 5 titaniumWatch developed in collaboration with Konstantin Chaykin in a 178-piece limited edition
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3 years warranty

Exploring new possibilities
FROM THE SWISS JURA TO THE WORLD
Watchmaking is a passion that knows no borders. Undoubtedly inspired by the vast history and horological heritage of the Swiss Jura region, Louis Erard’s vision and reach are global – maybe even universal.
THE PERFECT MATCH
Effortlessly transform your watch with easy-to-swap straps
RELATED CREATIONS
Our watches stand as a testament to traditional Swiss watchmaking artistry, offering a touch of timeless elegance for every wrist.