The Jaeger-LeCoultre Navy SEALs Automatic most plausibly refers to the Master Compressor Diving Automatic Navy SEALs, reference Q2018470. It is a straightforward automatic dive watch with a date, not the separate Diving Alarm or Diving Chronograph GMT models. Because the watch is an older, discontinued model and the available specifications come from dealer and secondary-market records rather than an exact-reference JLC product page, treat dimensions and other details as reported rather than definitive.
Which Jaeger-LeCoultre Navy SEALs watch is this?
Q2018470 is the likely subject of this review. The name can be confused with two related watches—the Diving Alarm and the Diving Chronograph GMT Navy SEALs—which add different functions and have their own specifications. The Q2018470 configuration is the simpler automatic diver, with time and date display. A contemporary enthusiast forum discussion also described it as the simpler option, but that is commentary, not evidence of official military adoption or use.
This is best considered a pre-owned watch. The available records are secondary-market listings and a dealer review description, not current official JLC product documentation. They do not establish current inventory, a current price, or a present-day endorsement by Jaeger-LeCoultre.
Reported specifications—and an important size discrepancy
Secondary sources commonly describe Q2018470 as a stainless-steel automatic diver with a black dial, date, sapphire crystal, and unidirectional ceramic bezel. Listings identify the movement as Calibre 899; EveryWatch’s 2026 listing data gives a 43-hour power reserve. These are reported details, not independently confirmed here against an official Q2018470 specification sheet.
#1 Best Overall
- Excellent condition - Minimal signs of wear consistent with pre-owned use.
- Wrist Size (in): 7.00 Case Height (mm): 17.70 Case Width (mm): 52.80
- Comes with Box,Instructions
- This item is pre-owned and may show light signs of wear. Please refer to the condition and photos.
- Comes with a myGemma Certificate Of Authenticity.
| Detail | What the available sources report |
|---|---|
| Case diameter | Conflicting reports: the 1916 Company gives 42 mm; Hourstriker gives 46 mm. Other listing records report approximately 42 mm. Confirm the exact reference or measure the specific watch before relying on a figure. |
| Thickness and lug-to-lug | The 1916 Company review description reports 13 mm thick and 49.7 mm lug-to-lug; these dimensions are not independently confirmed by an exact-reference JLC document. |
| Water resistance | Secondary listings report 30 ATM / 300 m. That is a reported original specification, not proof that a pre-owned example remains water resistant. |
| Movement and reserve | Listings identify Calibre 899; EveryWatch’s 2026 listing data claims 43 hours of power reserve. Both are secondary-source claims. |
| Edition size | EveryWatch’s 2026 listing data says 1,500 pieces. This limited-edition figure is not confirmed here by a JLC publication. |
The diameter conflict matters in practice: a reported 42 mm and a reported 46 mm imply meaningfully different wrist presence. Ask a seller for measurements of the exact example and, if possible, compare it in person. Do not assume that one listing’s dimensions apply to every watch carrying a Navy SEALs name.
What the watch offers
On paper, the appeal is a focused dive-watch layout: hours, minutes, seconds, and date, with a unidirectional ceramic bezel and automatic winding. It avoids the alarm and GMT functions of the related models, so a buyer who wants a less complicated display may prefer this configuration. That simplicity is a feature choice, not evidence that it is more capable underwater or more closely connected to Navy SEALs.
Rank #2
- Excellent condition - Minimal signs of wear consistent with pre-owned use.
- Wrist Size (in): 8.25 Case Height (mm): 17.50 Case Width (mm): 52.50
- Comes with Box,Instructions
- This item is pre-owned and may show light signs of wear. Please refer to the condition and photos.
- Comes with a myGemma Certificate Of Authenticity.
Listings show both leather and rubber strap configurations. The evidence does not establish one universally compatible strap or a confirmed lug width, so inspect the specific watch’s lug width and attachment before buying a replacement. Check whether its buckle and original strap are included, and whether the strap shown in a listing actually belongs to the watch being sold.
What to check before buying Q2018470 pre-owned
- Confirm the identity. Ask the seller to document reference Q2018470 and compare the watch’s details with reputable records. Do not rely on “Navy SEALs” alone, since the Alarm and Chronograph GMT are distinct models.
- Resolve fit and dimensions. Request measured case diameter, thickness, and lug-to-lug for the actual example. The published diameter reports conflict, and the available dealer dimensions are not manufacturer-confirmed here.
- Ask about condition and service. Request service records and clear images of the case, bezel, crystal, dial, and movement documentation where available. Establish what work was performed and when rather than inferring condition from a listing description.
- Verify water resistance if you plan to swim or dive with it. Ask for recent pressure-test documentation. An older watch’s reported original 300 m rating does not establish its current condition or test result.
- Check completeness and transaction terms. Confirm included box, papers, strap, and buckle; review the seller’s return policy and whether an independent or specialist assessment is possible. Request serial and paperwork details where available, and seek an expert authenticity assessment if anything is unclear.
Verdict
Q2018470 is an appealing candidate for someone seeking a relatively direct JLC automatic dive watch rather than the related alarm or GMT versions. Its reported ceramic bezel, date, and Calibre 899 make it easy to understand as a configuration, but the material case-size discrepancy and lack of exact-reference official documentation mean a buyer should verify the individual watch rather than shop from headline specifications. Condition, service evidence, fit, and a current pressure test matter more than treating a vintage listing’s original water-resistance figure as a guarantee.
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