Franck Muller Crazy Hours 5850 CH is an unmistakable statement watch built around the iconic Crazy Hours concept. Its unconventional numeral arrangement, jumping-hour mechanism and curved tonneau-shaped case create a distinctive time display unlike a conventional watch.

Franck Muller Crazy Hours 5850 CH

The defining feature of the Crazy Hours collection is the unusual arrangement of the hour numerals. Instead of following the traditional 1-to-12 sequence around the dial, the numbers are deliberately positioned in a non-sequential arrangement. The jumping-hour mechanism then moves the hour hand to the correct numeral as each hour changes. Franck Muller describes this as the central concept of the Crazy Hours collection. 1

Bold Red Dial

This version features a striking red patterned dial surrounded by multicolor Arabic numerals. The combination of red, blue, yellow and contrasting metallic details gives the watch an artistic and highly distinctive appearance.

Automatic Mechanical Movement

The product is specified with an Automatic Mechanical Movement. Documented Franck Muller 5850 CH examples use automatic movements, with Crazy Hours configurations featuring the jumping-hour complication. 2

Signature Tonneau Case

The curved tonneau/Cintrée Curvex case gives the watch its characteristic Franck Muller silhouette. Documented 5850 CH specifications include approximately 32 × 45mm case dimensions, sapphire crystal and 3 ATM water resistance, although dimensions can vary between specific 5850 CH configurations. 3

Red Leather Strap

The matching red leather strap continues the bold colour theme of the dial. Its textured alligator-style appearance complements the curved case and creates a cohesive luxury-fashion look.

Crazy Hours Jumping-Hour Design

Reading the watch is intentionally different from a conventional timepiece. The minute hand follows the normal 60-minute cycle, while the hour hand jumps between the irregularly positioned numerals to indicate the correct hour. This unusual display is the defining characteristic of the Crazy Hours concept. 4

Reference: 5850 CH
Case: Curved Tonneau / Cintrée Curvex
Movement: Automatic Mechanical
Function: Jumping Hour & Minutes
Crystal: Sapphire Crystal
Strap: Red Leather
Water Resistance: 3 ATM / 30m
Quality: Premium Quality