A Big Leap: Louis Erard X Konstantin Chaykin The Unfrogettable

A frog just leaped into a watch and decided to show us what true creativity in the watch world can look like. Swiss watchmaker Louis Erard and independent master watchmaker Konstantin Chaykin have teamed up once again to launch a fresh evolution of their iconic creation: The Unfrogettable. If you were a fan of the original design, this creature is back with the same hypnotic stare and mechanical mischief, but dressed in two completely different color personalities. To read about other watches by Konstantin Chaykin, click here.

Same Face, Two Totally Different Vibe Checks

The Unfrogettable keeps its signature look where time literally looks back at you. Thanks to a clever horizontal regulator display, the frog's rotating eyes do the heavy lifting: the hours are tracked at 9 o'clock, the seconds at 3 o'clock, and an arrow-shaped minute hand sweeps across the center. The magic comes alive in two striking new expressions, each strictly limited to just 178 pieces. The first option is Turquoise, which is bright, electric, and slightly surreal, featuring a light-grained base, deep blue-green counters, a two-tone minutes ring in blue-green and violet, rhodium-toned accents, and green luminescent details that give the creature a cool night vision. It comes paired with violet stitching and a matching violet leather lining. The second option is Brown, which is warmer, deeper, and more nocturnal, mixing a light brown grained base with dark brown counters, an ochre-and-brown minutes ring, and rich 5N-treated warm metallic flashes. It keeps things sleek with a classic all-black strap, stitching, and lining. Tucked right at 6 o'clock on both models is a hidden love note: the names Louis Erard Konstantin Chaykin sitting in plain sight. 

Built Like Armor, Weighing Almost Nothing

The frog isn't just painted onto a dial, it lives inside a properly engineered sculpture. Both models feature a 40 mm Grade 5 titanium case that balances satin-finished planes with polished curves, making it super light on the wrist. True to its royal amphibian nickname, the winding crown sits right at 12 o'clock shaped like an actual crown. For the final touch of craftsmanship, the watches are fitted with black Himeji Kurozan leather straps. Sourced from a historic Japanese tannery, this special leather is hand-rubbed, naturally tanned, and finished with traditional Urushi lacquer for a stunning mix of matte and glossy textures. 

The Details That Matter

When it comes to the technical specifications, the watch is powered by an automatic Sellita SW266-1 caliber featuring an openworked oscillating weight and a roughly 38-hour power reserve. It is built with sapphire crystal on both sides featuring anti-reflective treatment, along with water resistance up to 50 meters or 5 bar. Finally, it is offered at a recommended retail price of CHF 4,500. 

Whether you want to channel the electric shock of the Turquoise or the earthy warmth of the Brown, these monsters of independent watchmaking prove that horology can take any form it wants, even ones that can go "ribbit". To read about its latest launch at Geneva Watch Days 2026, click here.