About Franck Muller
Founded in Genthod, Geneva, in 1991, Franck Muller is best known for the Cintrée Curvex, Crazy Hours, Master Banker and Vanguard. Franck Muller built a reputation on complicated movements in tonneau cases, and the Crazy Hours jumping-hour mechanism is a genuinely original complication rather than a dial trick. Understanding what a manufacture actually does in-house matters when you buy pre-owned, because it determines how easy the watch will be to service in ten years' time and which parts can still be replaced with factory components.
What to check on a pre-owned Franck Muller
Curved cases and curved crystals are expensive to replace; check for chips at the crystal edge. Confirm the complication functions across a full cycle. We do all of this before a watch is listed and publish what we find, including the flaws — see Authentication for the full inspection process and our condition grades.
Franck Muller on the secondary market
Prices pre-owned fall well below retail, so buy for the design and the complication rather than as a store of value. Prices move with supply, so we re-price inventory against recent comparable sales rather than list price. If you are considering selling or trading a Franck Muller, see Sell Your Watch.
How we authenticate every watch
Authentication is not a paperwork exercise. We remove the case-back and verify the calibre against the reference; we check dial printing, hand sets and lume ageing under magnification; we measure timing in multiple positions; we confirm bracelet stamping, end-link fit and clasp codes; and we pressure-test sports references with intact cases. Any watch that fails is returned to its consignor rather than discounted onto the site. Our authenticity guarantee has no time limit.
Condition grading in plain language
We publish one of five grades — unworn, excellent, very good, good, or project — and back each with photographs of the actual watch. Unworn means factory condition with a full set. Excellent means light hairlines only and sharp case geometry. Very good means normal wear with every mark disclosed. Good means visible wear and possibly a previous polish. Project means clearly stated faults, priced accordingly and sold as-is.
Shipping, returns and warranty
Every watch ships fully insured for its declared value with signature required, in discreet packaging, at no cost to you. You have 14 days from delivery to return any watch for a full refund, for any reason, using a prepaid insured label. Mechanical watches carry a 12-month warranty on the movement. Details are on Shipping & Delivery, Returns & Refunds and Warranty.
Related collections
If you are cross-shopping, browse our chronographs, dive watches, GMT and travel watches and dress and classic watches, or see every maker we carry on the brands page.
Questions before you buy
Ask for extra photographs, a movement shot, a wrist shot, or the full timegrapher readout — we send all of them on request. Email sales@chrono24watches.st with the listing URL and we will reply within one business day. If the exact Franck Muller reference you want is not in stock, tell us the reference, target condition and budget and we will contact you when a matching watch clears authentication.
