Longines Specialists

Auguste Agassiz started the business in Saint-Imier in 1832, working through the établissage system. Independent craftspeople made parts at home, and the trading office coordinated assembly and sales. His nephew Ernest Francillon later brought production under one roof at a site called Les Longines, and the factory that opened there in 1867 gave the brand its name. Watches leaving the factory carried the Longines name, the winged hourglass and a serial number.

The Lindbergh Hour Angle, a navigation watch produced in 1931, was conceived by Charles Lindbergh after his 1927 transatlantic flight. Its angular scales helped aviators find longitude from celestial observations, which is a different job from reading the time. Original examples used the manually wound caliber 18.69N, which is worth knowing if you ever compare a vintage piece against a modern reference.

The factory's first movement was caliber 20A, which won an award at the Paris Universal Exhibition in 1867. Today's range is organized into families. Conquest includes the HydroConquest divers, Spirit is the aviation-inspired mechanical line, DolceVita covers the rectangular dress watches, and Master Collection holds the traditional round dress watches. Ultra-Chron is a high-frequency timekeeping movement, and the L688 family is the column-wheel chronograph base.

Longines points owners to their nearest authorized retailer or service center rather than assuming the headquarters will accept repair shipments. In the United States, the online service request and the customer service line are the starting points. The Saint-Imier address is listed in official documents, but it is not a confirmed walk-in or direct-mail intake, so ask before sending anything there.

Because the L888 family is built on an ETA base, a watchmaker who regularly services ETA-based movements will recognize much of the work. The Longines-exclusive changes still need checking, and the chronograph and column-wheel movements need a watchmaker who knows the brand's architecture. Ask whether they have serviced a Longines before, and whether they can source the exact parts for the reference in your case.

A watch under warranty should go through the brand. Longines gives 24 months on servicing, subject to exclusions for normal wear, accidents and unauthorized work. For vintage calibers before 1990, the brand prices service by estimate, so get that estimate in writing and agree on the scope before the watch is sent.

Ask the shop how it will handle the old parts and whether it will show you what was replaced. A common automatic can be a quick job, while a chronograph pusher or column-wheel problem usually takes longer and costs more, so ask for the turnaround as well as the price.

Longines recommends a full service every six to eight years for mechanical watches. A full service covers diagnosis, disassembly, cleaning, lubrication, adjustment, the replacement of worn components, reassembly and technical and cosmetic checks. A watch worn daily, or one that sees a lot of water, will need a closer look than that, and the interval is a ceiling rather than a target.

Don't wait for the interval if the watch starts losing time, the crown feels wrong or the crystal fogs. Those are the classic signs that a gasket or the movement has failed, and a quick check now often prevents a larger bill later. Pressure test at each service and before any trip on the water, and keep a record of each result.

Longines also offers restoration for vintage watches, and that is a different service from routine maintenance. Ask for the restoration scope in writing, including whether the dial, hands, crown or movement will be replaced, and what the brand would do with original parts. A vintage piece restored with a clear record usually keeps its value better than one that was tidied up without one.

Longines is a well-known name, so copies are common, particularly of the sporty and dress shapes that sell in volume. Check the movement through the caseback when the seller allows it, look at the dial and hands for alignment, and check the crown and pushers for fit. A seller who will let you open the case, or who will send the watch to an independent before payment, is the one to deal with.

Look hard at the case and bracelet. Polished cases can look soft, and bracelet links stretch with wear. Ask whether the watch has been refinished, because a polish or a dial refinish changes its value, and experienced buyers will check. For vintage pieces, ask what caliber is inside. The 1931 Lindbergh Hour Angle, for example, is a different movement and a different job from a modern Spirit.

Keep the paperwork tied to the watch. Longines' 24-month service warranty covers the work done, so keep the service invoice, and an original warranty card and receipt help any future owner and any future service. Vintage Longines are a separate category, and a dial or hands replaced without a record can lower the value a great deal.

Test the bezel and crown on any diver or sport model. Play in a dive bezel means the timing function is no longer reliable, and a crown that doesn't seat cleanly suggests the seals need attention. Check the bracelet fit at the lugs as well, because a bracelet swapped in from another reference often sits at the wrong width.

Start with the movement reference, which tells you whether you have an L888, an L688 chronograph or a vintage caliber. A watchmaker who services ETA-based movements every week can handle an L888 with the right parts. A vintage Lindbergh or a column-wheel chronograph suits a specialist with real brand experience, since the design details are where mistakes happen.

Ask for a written estimate, the old parts back and a clear statement on polishing. Longines' own service description includes polishing as part of the process, so decide in advance whether you want the case refinished and whether that counts as original. An honest shop will ask before touching anything that changes the look of the watch.