About Longines
Founded in Saint-Imier in 1832, Longines is best known for the Heritage line, Spirit, Master Collection and Conquest. Longines holds an enormous archive of historic chronograph and pilot designs, and its modern heritage re-editions are unusually faithful to the originals rather than reinterpretations. 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 Longines
Vintage Longines with in-house calibres such as the 13ZN or 30CH are collectible and increasingly faked; verify the movement. Modern models are straightforward and well supported. 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.
Longines on the secondary market
Longines is the strongest value proposition among established Swiss brands, particularly in the heritage chronograph range. 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 Longines, 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 Longines 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.

