Encyclopedia / Longines / HydroConquest
Current deal · verified Oct 19, 2026, 10:22 PM ET
$1,480 List $2,000
Save $520 (26%) · new · Jomashop
Ref. L37814566 · Listed as new
Brand new from Jomashop, a grey-market (non-authorized) dealer, so expect the store's warranty (Jomashop lists '2 Year Jomashop Warranty') rather than the brand's. Also checked: WatchMaxx $1,600 (10:28 PM ET). 'List' is the retail figure the dealer displays; I could not confirm it on the brand's own US site. Prices change fast; check the store before you buy.
Price comparison: fixed-price listings
| Store | Condition | Box & papers | Asking price | Link | Checked |
|---|---|---|---|---|---|
| Jomashop | new | Yes* | $1,480 | View | Oct 19, 2026 |
| WatchMaxx | new | Yes* | $1,600 | View | Oct 19, 2026 |
Fixed-price (buy-now) asking prices in USD for ref. L37814566, cheapest new and cheapest pre-owned with box and papers per store, sorted low to high and checked Oct 19, 2026 (ET). Buy-now listings only. Pre-owned listings are shown only when the listing states box and papers. * New from a grey-market dealer: comes boxed, but the warranty card may be the dealer's rather than the brand's. Chrono24 rows are individual third-party marketplace sellers. Prices change fast; confirm with the store.
What it really costs
| Market | Price | Source |
|---|---|---|
| List price per Jomashop & WatchMaxx | $2,000 | jomashop.com |
| New at Jomashop | $1,480 | Jomashop |
| New at WatchMaxx | $1,600 | WatchMaxx |
| Pre-owned (Chrono24 asks) | about $1,250 – $1,950 (median ~$1,750, 48 listings sampled) | Chrono24 |
All prices in USD, checked Oct 19, 2026 (ET). Pre-owned ranges are the middle 80% of asking prices on the first Chrono24 results page for that ref (about 60 listings, used and some unworn), fixed-price listings only. Grey-market = brand-new from a non-authorized dealer.
Buying guide
Key references
| Ref. | What it is | US retail |
|---|---|---|
| L37814566 | Hydroconquest Automatic Ceramic Bezel 41 mm Men's Watch | $2,000 |
Which one I'd pick
Which one: I priced the 41 mm black ceramic-bezel L3.781.4.56.6. Longines also sells 39 and 43 mm versions.
What to check before you buy
- Warranty: grey-market new watches usually carry the dealer's warranty, not the brand's. Ask which one you get and whether the brand's warranty card is included.
- Exact reference: dial colour, size and strap change the price. Match the full ref (L37814566) before comparing deals.
- Fakes and red flags: be wary of prices far below the ranges above, stock photos only, or sellers who won't show the caseback, serial and papers.
Alternatives worth a look
- Tissot Seastar 1000 Powermatic 80: Cheaper Swiss diver. (43 mm Stainless Steel, POWERMATIC 80.111, retail $925 (list price per Jomashop & WatchMaxx))
- Omega Seamaster Diver 300M: The step-up diver. (42 mm stainless steel, Calibre 8800, retail $6,700 (steel bracelet; blue .03.001 or black .01.001))
- Longines Legend Diver: Vintage-style Longines diver. (42 mm Stainless Steel, Longines Calibre L888, retail $2,850 (list price per Jomashop & WatchMaxx))
History
Longines was founded in Saint-Imier, Switzerland, in 1832 by Auguste Agassiz; its winged-hourglass logo, registered in 1889, is the oldest unchanged active trademark registered with WIPO.
The HydroConquest L3.781.4.56.6 is a 41 mm automatic diver with a ceramic bezel, per Jomashop.
Specifications
| Brand | Longines |
|---|---|
| Model | HydroConquest |
| Key references | L37814566 |
| Launch year | Not confirmed |
| Case | 41 mm Stainless Steel |
| Band width | 21 mm |
| Crystal | Scratch Resistant Sapphire |
| Caseback | Solid |
| Bezel | Uni-directional Rotating |
| Bezel material | Stainless Steel with a Black Ceramic Ring |
| Dial | Black Sunray |
| Strap/bracelet | Stainless Steel |
| Functions | Date, Hour, Minute, Second |
| Movement | Longines Calibre L888, automatic |
| Power reserve | About 64 hours |
| Water resistance | 300 m |
| Approx. US retail (Oct 2026) | $2,000 (list price per Jomashop & WatchMaxx) |
Specs from the retailer (Jomashop/WatchMaxx) or brand product page linked above for the main reference; see our research notes for which. Retail prices are list prices, not market value, and change often.
Highlights
- 41 mm steel case
- Ceramic bezel insert
- Automatic movement
FAQ
How much is the Longines HydroConquest?
List price per Jomashop & WatchMaxx: $2,000. New, the best verified price was $1,480 at Jomashop (checked Oct 19, 2026, 10:22 PM ET). Pre-owned asks on Chrono24 mostly ran $1,250 to $1,950.
What movement does the HydroConquest use?
The L37814566 checked here uses the Longines Calibre L888 (automatic) with about 64 hours of power reserve.
How big is the HydroConquest?
41 mm Stainless Steel.
Is the HydroConquest water resistant?
Yes, it's rated to 300 m.
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Get the free weekly issuePrices and availability last checked Oct 19, 2026. No affiliate links: I don't earn anything if you buy. Sources are listed in our research notes and linked above.