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Tudor
Hydronaut 99090
Median resale value
$1,520
$1,082middle 50% of listings$3,396+
$1,380 q1$1,886 q3
Every active listing we track, bucketed by asking price. The band you buy in tells you more than the average does.
77 active listings. Median asking price $1,520. The middle 50% ask between $1,380 and $1,886.
Counts here cover listings with a known price, so they can be lower than the active total above.
| Listing | Posted | Condition | Authenticity | Price ↑ | vs median | ||
|---|---|---|---|---|---|---|---|
 | eBay | 5/1/2026 | Good | Unknown | $1,082 | 29% below the median price | View on eBay |
 | eBay | 9/14/2026 | Good | Unknown | $1,182 | 22% below the median price | View on eBay |
 | eBay | 9/8/2026 | Good | Unknown | $1,218 | 20% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,220 | 20% below the median price | View on eBay |
 | eBay | 5/4/2026 | Good | Unknown | $1,222 | 20% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,250 | 18% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,260 | 17% below the median price | View on eBay |
 | eBay | 10/19/2026 | Good | Unknown | $1,279 | 16% below the median price | View on eBay |
 | eBay | 10/7/2026 | Good | Unknown | $1,281 | 16% below the median price | View on eBay |
 | eBay | 3/27/2026 | Good | Unknown | $1,290 | 15% below the median price | View on eBay |
 | eBay | 3/27/2026 | Good | Unknown | $1,322 | 13% below the median price | View on eBay |
 | eBay | 9/24/2026 | Good | Unknown | $1,356 | 11% below the median price | View on eBay |
 | eBay | 10/7/2026 | Good | Unknown | $1,370 | 10% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,380 | 9% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,380 | 9% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,380 | 9% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,380 | 9% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,380 | 9% below the median price | View on eBay |
 | eBay | 5/24/2026 | Good | Unknown | $1,380 | 9% below the median price | View on eBay |
 | eBay | 5/24/2026 | Good | Unknown | $1,380 | 9% below the median price | View on eBay |
 | eBay | 5/24/2026 | Good | Unknown | $1,382 | 9% below the median price | View on eBay |
 | eBay | 5/24/2026 | Good | Unknown | $1,390 | 9% below the median price | View on eBay |
 | eBay | 9/15/2026 | Good | Unknown | $1,420 | 7% below the median price | View on eBay |
 | eBay | 8/4/2026 | Good | Unknown | $1,440 | 5% below the median price | View on eBay |
We currently track 131 listings for the Tudor Hydronaut 99090, with prices ranging from $1,082 – $3,412, from eBay.
The Tudor Hydronaut 99090 is a distinguished timepiece from Tudor, a brand renowned for its Swiss craftsmanship and robust designs. This model features a striking stainless-steel case with a unidirectional rotating bezel, designed specifically for diving enthusiasts. The Hydronaut collection exemplifies Tudor's commitment to durability and precision, making it a reliable companion for underwater adventures. The watch boasts a bold black dial, accented by luminous hour markers and hands for enhanced readability in low light conditions. Its 40mm case diameter strikes a balance between presence and wearability, appealing to both men and women. The Hydronaut 99090 is powered by a self-winding mechanical movement, ensuring accurate timekeeping without the need for a battery. With a water resistance rating of 200 meters, this watch is engineered for serious divers, while its sporty aesthetic makes it suitable for everyday wear. The bracelet is crafted from brushed stainless steel, offering both comfort and durability, making it a versatile addition to any watch collection. The Tudor Hydronaut 99090 stands as a testament to Tudor's legacy of creating functional yet stylish timepieces.
The Tudor Hydronaut 99090 is a pre-owned Tudor watch available for purchase across multiple resale platforms. Shop 131 active listings with prices ranging from $1,082 – $3,412. Find this item on eBay. Listings are available in Good condition, so you can choose the quality and price point that suits you.
Current market prices by condition and authenticity, based on active listings.
| Condition | Listings | Price range |
|---|---|---|
| Good | 77 | $1,082 – $3,412avg $1,694 |
| Status | Listings | Price range |
|---|---|---|
| UnknownListings where authentication status is not specified | 77 | $1,082 – $3,412avg $1,694 |
| Marketplace | Listings | Total value |
|---|---|---|
| eBay | 77 | $130.5K |
| Total | 77 | $130.5K |
Listing counts in the condition and platform tables are filtered subsets (listings with a known condition or price). The “active listings” figure at the top of the page reflects all tracked active listings and may be higher.
