Longines Spirit: the 40 mm and 42 mm chronometer

The Longines Spirit is a pilot-styled three-hand automatic with a date at three o'clock, sold in 40 mm and 42 mm steel cases on a leather strap or a steel bracelet. The design borrows from Longines' own 1930s aviation watches: large Arabic numerals, a long central seconds hand, blued or rhodium-plated hands, and five stars printed under the brand name. This page describes the three-hand Spirit introduced in 2020. Longines has since built out the family with the Spirit Zulu Time GMT, a flyback chronograph and a smaller Spirit Pilot, all of which use different calibers and different cases.

What makes the Spirit worth a page is not the styling, which is competent rather than original. It is that the whole line is submitted for chronometer certification, and that the movement is built to Longines' own specification with a silicon balance spring. At the price, that combination is rare. Our Longines brand assessment covers where the company sits inside the Swatch Group and what that means for parts and service.

The specification

Longines publishes less than most buyers expect. Its product pages give diameter, water resistance, crystal, beat rate, power reserve and certification, and stop there. Thickness, lug-to-lug distance and lug width are absent, which is the single most annoying thing about shopping for one online.

Forty or forty-two, and why it is not a two millimeter question

The two Spirits are separate cases rather than one case scaled. The 42 mm is wider, taller through the middle, longer between the lug tips and fitted with a wider strap. On a 16 cm wrist, about 6.3 inches, the 40 mm sits flat with the lug tips inside the edge of the wrist bone. The 42 mm reaches the edge and, on flatter wrists, past it, which is the point at which a watch stops looking like it belongs to you. Diameter is the number everyone quotes and lug-to-lug is the number that decides the fit, as our explanation of lug-to-lug distance sets out.

Neither is a slim watch. Both are around 12 to 13 mm thick with a box-flat crystal and a solid caseback, and the bracelet adds visual bulk over the top of the lug. Under a shirt cuff the 40 mm disappears; the 42 mm catches. Work out your own numbers with the watch size calculator before you commit, and read our note on how 38, 40 and 42 mm actually differ if you are between sizes. Our broader sizing and fit guide covers what to measure and how.

The caliber, and living with it

The L888.4 is not an off-the-shelf part. ETA builds it for Longines on architecture descended from the 2892, running slower than that ancestor at 25,200 vibrations per hour to buy a longer power reserve, and fitted with a monocrystalline silicon balance spring. It winds automatically, hand-winds through the crown, and hacks, so you can set it to a time signal.

In practice the certification shows. A COSC movement is tested uncased, so the certificate describes the movement rather than the finished watch, and casing can shift the rate by a second or two either way. Owners commonly report a Spirit settling somewhere between about two seconds slow and four seconds fast per day in normal wear, which is inside the certified band and better than the honest expectation for an uncertified automatic. If you want to check yours properly, run it for a week rather than a day and use the accuracy calculator, or read how to test accuracy at home.

The silicon spring matters for a specific failure. Steel hairsprings magnetize, coils cling together, and the watch suddenly gains minutes a day; our guide to magnetism and watches explains why that happens and how to spot it. Silicon cannot be magnetized, so that failure is designed out. It is not the same as an antimagnetic certification, because the rest of the escapement is steel and Longines publishes no gauss figure.

What COSC certification actually buys

The test runs fifteen days, in five positions, at three temperatures, and all seven criteria must pass, not just the headline rate. Our full explanation of what COSC certified means goes through them, and the wider accuracy and chronometer standards guide puts COSC next to METAS and the various in-house schemes.

Two honest limits. Certification is a floor, not a promise about your watch three years from now, because rate drifts as oil ages. And plenty of uncertified movements keep fine time. What certification removes is the guesswork, which at this price is unusual enough to be the main reason to choose it.

What it is good at

The Spirit answers a narrow question well: one mechanical watch, worn daily, that needs no excuses made for its timekeeping and does not cost five figures. The dial is legible in the way pilot dials are supposed to be, the lume is generous, 10 bar covers swimming without thought, and the five-year warranty beats most of the competition. It is also easy to buy, which sounds trivial until you have spent a year on a waiting list.

What is wrong with it

The date window is the recurring complaint. On the 42 mm it crowds the numeral at three o'clock, and on both sizes the white date disc against a dark dial breaks the calm of the layout. Longines has never addressed it.

The case is thicker than the design deserves. A flat pilot dial with no bezel invites a slim case, and 12 to 13 mm is not slim; the 40 mm carries it, the 42 mm does not always. The bracelet clasp has no on-the-fly micro-adjustment, which is a real omission on a watch that expands and contracts with the weather, and the published specification is thin enough that you cannot judge fit without handling one.

And the design is derivative. It is a well-executed anthology of aviation-watch cues rather than a shape anyone would recognize across a room. That is a matter of taste, but it feeds directly into the next section.

What it costs, new and used

All figures below are indicative US list prices, quoted before sales tax, which varies by state, and they move with the market, with discounting and with annual increases. Longines lists the steel-bracelet Spirit at roughly $2,500 to $3,000 depending on size, dial and bracelet, with leather-strap versions a little under that. Check the current number before you plan around it, and note that the list in your own country will differ, because local tax, import duty and distribution all move it. Authorized dealers discount, and grey-market sellers discount more, which matters for the paragraph that follows.

Secondhand, expect a clean Spirit with box and papers to trade somewhere around half to two thirds of its list price, and closer to half than to two thirds once it is a few years old. That is not a scandal, it is arithmetic: production is large, supply is easy, and the name does not carry a scarcity premium. Our guide to watch value and depreciation explains why the first-owner drop is structural rather than a judgment on the watch, and whether watches hold their value puts the Spirit in context. The practical conclusion: buy it to keep, or buy it used and let somebody else pay the depreciation.

Running cost over ten years is dominated by one service. A three-hand automatic with a common Swiss caliber runs roughly $250 to $500 at a good independent and more at a brand service center, as our breakdown of what a service costs sets out. Budget one service and a couple of pressure tests across a decade, add a strap or two, and put the numbers into the cost of ownership calculator.

The alternatives, and when each is the better answer

If you want the same aviation idea with a five-day power reserve, an in-house-family caliber and a soft-iron magnetic shield, the IWC Pilot's Watch Mark XX is the watch the Spirit is measured against. It is roughly twice the price, it is not chronometer certified, and it is the better buy only if the case work and the name matter to you as much as the numbers do.

If you actually swim, dive or work outdoors, 10 bar and a flat bezel are the wrong tools. The Oris Aquis Date gives 30 bar, a timing bezel and a ceramic insert for broadly the same money, at the cost of considerably more watch on the wrist.

If you want a chronograph rather than a time-and-date watch, the TAG Heuer Carrera is the obvious step across, though it costs roughly twice as much and depreciates at least as steeply. And if the Spirit's appeal is simply a well-made Swiss automatic at a sane price, read buying your first mechanical watch before you narrow the field, because the Spirit is a good answer to a question you should make sure you are asking.