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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →The Longines Legend Diver 39mm no-date is a 2023 redesign, not a newly introduced 2026 model. Its defining features are a 39 mm steel case, two screw-down crowns and an internal rotating bezel beneath the crystal. Longines specifies a COSC-certified automatic movement with up to 72 hours of power reserve and water resistance to 300 metres. The first launch versions had black or blue dials; later releases expanded the range.
What the 2023 Longines Legend Diver 39mm no-date is
Longines announced the redesigned 39 mm Legend Diver on 16 November 2023, presenting it as a return to the proportions and design language of the watch the company dates to 1959. The launch description covered black- and blue-dial versions. That no-date specification and those initial colours describe the 2023 launch, not every later watch in the broader Legend Diver collection. Longines’ account of the original and the redesign is the brand’s own history; the cited materials are not independent archival research.
The case is stainless steel and measures 39 mm in diameter. Longines describes the model as immediately recognizable by its two crowns and internal rotating bezel. The crown at 2 o’clock operates the bezel, which provides a 60-minute elapsed-time scale. Because the bezel sits inside the case beneath the crystal, its setting is less exposed to accidental knocks or handling than an external rotating bezel, according to Longines.
Movement, certification and water resistance
Calibre L888.6
Longines specifies automatic calibre L888.6, with a silicon balance-spring and a power reserve of up to 72 hours. The company says its magnetic resistance is ten times greater than the ISO 764 benchmark; that comparative figure is a Longines claim, not an independent test result reported here.
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COSC chronometer certification
Longines says the complete watch is COSC-certified. Its November 2023 release describes COSC testing of the cased watch head over 15 consecutive, uninterrupted days, in different positions and at three temperature levels. This is the process as summarized by Longines; it is not a report of independent testing of an individual example.
Diver certification and the 300 m rating
The brand also states that the model is certified as a divers’ watch under ISO 6425 and rates it to 30 bar / 300 m. Longines’ release summarizes the standard as including at least 100 m / 10 bar water resistance, resistance to shocks, magnetic fields, temperature variation, condensation and corrosion, a dive-time indicator, and legibility in darkness. That is Longines’ summary, not a replacement for the standard itself. Nor does a new-watch specification establish the present condition of a used or unworn individual watch: water resistance can depend on the condition of seals and correct crown closure.
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How the 39 mm fits into the Legend Diver range
The 39 mm no-date launch model should not be conflated with every watch now sold under the Legend Diver name. Longines expanded the collection after the 2023 launch, and its current catalog also includes a 42 mm Legend Diver 59. The 42 mm model is a distinct size and model context rather than a direct substitute for the 39 mm no-date watch.
| Version or release | What the cited material establishes |
|---|---|
| 39 mm launch, November 2023 | Black or blue dial; no-date launch description; stainless-steel case and the technical specifications above. Longines / Swatch Group archive. |
| 2024 collection additions | Green, terracotta and anthracite-grey dials were added. Longines Media Center, 29 August 2024. |
| 2025 additions | Longines announced a matte white dial and blue and black rubber straps. The release does not establish that every configuration shares the 2023 launch setup. Longines Media Center, 5 June 2025. |
| 42 mm Legend Diver 59 | A separate 42 mm model. Longines’ US collection page displayed it at $4,100 when checked on 4 October 2026; that price is not a like-for-like comparison with a 39 mm listing. Longines US collection page. |
Strap and bracelet configurations depend on the version. The collection includes leather, NATO, steel-bracelet and rubber-strap options across releases, but the cited material does not establish compatibility for particular third-party replacement straps.
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Longines Legend Diver 39mm price and availability
On 4 October 2026, Longines’ US collection page displayed a 39 mm listing at $3,500, while its international collection page displayed a 39 mm listing at CHF 2,900. These are regional catalog snapshots, not a single global price, and catalog prices can change. Check the page for your market and the exact dial or strap configuration before buying.
For current versions, start with the Longines US Legend Diver collection or the international Legend Diver collection. Listings and regional availability may differ.
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What to check before choosing a version
- Case size and identity: confirm that the listing is the 39 mm model if that is the proportion you want, rather than the 42 mm Legend Diver 59.
- Dial and date display: the original 2023 black- and blue-dial launch was described as no-date; later releases added other dial colours, so check the exact reference and configuration.
- Attachment: verify whether the specific listing comes on leather, NATO, a steel bracelet or rubber. Do not assume an aftermarket strap will fit based on the collection name alone.
- Condition and water use: the published 300 m rating and certification are manufacturer specifications. For an individual watch, especially a pre-owned one, ask about service and have water resistance checked before relying on it underwater.
- Local price: compare the exact regional listing and configuration rather than treating US dollars and Swiss francs as equivalent catalog prices.
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.
