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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesThe Longines Spirit Pilot is a 39 mm automatic watch; the Spirit Pilot Flyback is a 39.50 mm manually wound chronograph with a flyback function. That extra complication brings a different way to operate the watch and a higher displayed U.S. price. The right choice depends chiefly on whether you want an automatic time-only pilot watch or a manual-wind chronograph for timing successive intervals.
At a glance: Spirit Pilot vs. Spirit Pilot Flyback
| Model | Movement and function | Case size | Published U.S. price |
|---|---|---|---|
| Spirit Pilot, 39 mm variants | Automatic; Longines says the collection’s movements have silicon balance springs and COSC chronometer certification | 39 mm | $2,700, $2,850, or $3,100 depending on variant |
| Spirit Pilot Flyback L3.721.4.93.6, steel bracelet | Manual winding; flyback chronograph | 39.50 mm | $5,550 |
| Spirit Pilot Flyback L3.721.4.93.9, rubber strap | Manual winding; flyback chronograph | 39.50 mm | $5,250 |
Prices are those displayed on Longines’ U.S. pages accessed October 8, 2026; they are not assurances of current stock or the price a retailer will charge. The Spirit Pilot collection includes multiple configurations, so its price depends on the specific variant. See the Spirit Pilot collection, the Spirit Pilot Flyback collection, and the L3.721.4.93.6 product page for current listings.
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LONGINES Spirit Zulu Time 39MM Automatic Watch | $3,550.00 | Buy on Amazon |
| 2 |
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LONGINES Spirit Zulu Time 39MM Automatic Watch | $3,450.00 | Buy on Amazon |
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LONGINES Spirit 40MM Automatic Watch | $2,550.00 | Buy on Amazon |
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LONGINES Spirit Zulu Time 39MM Automatic Watch | $3,550.00 | Buy on Amazon |
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LONGINES Spirit 39MM Automatic Watch | $3,450.00 | Buy on Amazon |
What the flyback complication changes
A conventional chronograph generally needs its timing sequence stopped and reset before a new interval begins. A flyback chronograph can restart timing in one operation, which is useful when measuring successive intervals. Longines describes the function in a pilot context: “Designed as a groundbreaking tool for pilots, the flyback complication makes it possible to time successive flight stages, greatly enhancing navigational efficiency.”
Longines says it introduced its first flyback-equipped model in the early 1930s and patented the technology on June 16, 1936. That is the brand’s historical account.
#1 Best Overall
- Automatic L844 movement, hours, minutes, seconds and date. 24 hours hand with time zone mechanism
- Stainless steel with double safety folding clasp and push-piece opening mechanism
- 5 Year International Warranty
Movement, size, and specifications
Spirit Pilot: automatic and 39 mm
Longines identifies the Spirit Pilot as an automatic collection in 39 mm. Its collection page describes silicon balance springs and COSC chronometer certification. It is the more straightforward option if you want an automatic watch and do not need a chronograph.
Spirit Pilot Flyback: manual winding and 39.50 mm
The Flyback is a manually wound chronograph. For reference L3.721.4.93.6, Longines lists an approximate 68-hour power reserve, 10 bar water resistance, sapphire crystal, a blue matt dial, and a stainless-steel bracelet. Reference L3.721.4.93.9 is listed with the same blue dial and a rubber strap. Longines’ collection page identifies both as 39.50 mm models.
Rank #2
- Automatic L844 movement, hours, minutes, seconds and date. 24 hours hand with time zone mechanism
- Beige Leather strap with double security folding clasp with micro adjustment system
- 5 Year International Warranty
The size difference is half a millimeter on paper; it does not establish how either watch will wear on a particular wrist. Likewise, the published specifications do not establish comparative accuracy, comfort, or real-world performance.
Which one should you choose?
Choose the Spirit Pilot if
- You prefer an automatic movement over a manually wound one.
- You want a 39 mm watch without the Flyback’s chronograph complication.
- You are comparing the listed U.S. prices: Spirit Pilot variants are displayed from $2,700 to $3,100, depending on configuration.
Choose the Spirit Pilot Flyback if
- You want to time intervals and value the ability to restart timing in one operation.
- You are comfortable winding the watch by hand.
- You prefer its 39.50 mm case and accept the higher displayed U.S. prices for the cited Flyback configurations.
These are feature-based distinctions drawn from Longines’ published specifications, not conclusions from hands-on testing. If case size or strap choice is decisive, compare the exact reference and configuration rather than relying on the collection name alone.
Rank #3
- Automatic L888.4 movement, hours, minutes, seconds and date
- Stainless steel with triple safety folding clasp and push-piece opening mechanism
- 5 Year International Warranty
Warranty and servicing
Longines’ international warranty terms provide a five-year warranty for mechanical watches purchased from January 1, 2021, subject to the stated conditions. The warranty takes effect only when the certificate is dated and fully completed by an official Longines dealer. Longines directs owners to official dealers or approved Longines Service Centres for servicing. Local consumer rights may also apply; consult the Longines international warranty document for the terms.
Longines recommends an annual water-resistance check. Its warranty document also states: “In no circumstances should you open your watch yourself.”
Quick Recap
Best Value
- Automatic L844 movement, hours, minutes, seconds and date. 24 hours hand with time zone mechanism
- Blue Leather strap with double security folding clasp with micro adjustment system
- 5 Year International Warranty
Rank #4
- Automatic L844 movement, hours, minutes, seconds and date. 24 hours hand with time zone mechanism
- Stainless steel with double safety folding clasp and push-piece opening mechanism
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
