Based on 6 listings — treat as indicative
Every active listing we track, bucketed by asking price. The band you buy in tells you more than the average does.
6 active listings. Median asking price $5,737. The middle 50% ask between $5,467 and $5,747.
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 | 9/29/2026 | Good | Unknown | $5,264 | 8% below the median price | View on eBay |
 | eBay | 9/17/2026 | Good | Unknown | $5,378 | 6% below the median price | View on eBay |
 | eBay | 10/13/2026 | Good | Unknown | $5,733 | At the median price | View on eBay |
 | eBay | 10/8/2026 | Good | Unknown | $5,741 | At the median price | View on eBay |
 | eBay | 9/29/2026 | Good | Unknown | $5,749 | At the median price | View on eBay |
 | eBay | 10/7/2026 | Good | Unknown | $5,891 | 3% above the median price | View on eBay |
 | eBaySold | 8/25/2026 | Good | Unknown | $3,539 | 38% below the median price | Sold10/8/2026 |
 | eBaySold | 7/10/2026 | Good | Unknown | $3,543 | 38% below the median price | Sold8/19/2026 |
 | eBaySold | 8/25/2026 | Good | Unknown | $4,951 | 14% below the median price | Sold10/8/2026 |
 | eBaySold | 6/24/2026 | Good | Unknown | $5,023 | 12% below the median price | Sold8/9/2026 |
 | eBaySold | 8/4/2026 | Good | Unknown | $5,088 | 11% below the median price | Sold9/15/2026 |
 | eBaySold | 8/4/2026 | Good | Unknown | $5,088 | 11% below the median price | Sold9/15/2026 |
 | eBaySold | 8/18/2026 | Good | Unknown | $5,091 | 11% below the median price | Sold10/8/2026 |
 | eBaySold | 8/18/2026 | Good | Unknown | $5,225 | 9% below the median price | Sold10/8/2026 |
 | eBaySold | 6/23/2026 | Good | Unknown | $5,330 | 7% below the median price | Sold8/9/2026 |
 | eBaySold | 7/27/2026 | Good | Unknown | $5,364 | 7% below the median price | Sold9/6/2026 |
 | eBaySold | 8/14/2026 | Good | Unknown | $5,423 | 5% below the median price | Sold9/26/2026 |
 | eBaySold | 9/16/2026 | Good | Unknown | $5,440 | 5% below the median price | Sold10/17/2026 |
 | eBaySold | 8/13/2026 | Good | Unknown | $5,448 | 5% below the median price | Sold9/21/2026 |
 | eBaySold | 8/18/2026 | Good | Unknown | $5,462 | 5% below the median price | Sold10/8/2026 |
 | eBaySold | 6/24/2026 | Fair | Unknown | $5,799 | 1% above the median price | Sold7/29/2026 |
 | eBaySold | 8/16/2026 | Good | Unknown | $5,984 | 4% above the median price | Sold10/8/2026 |
 | eBaySold | 7/31/2026 | Good | Unknown | $8,855 | 54% above the median price | Sold9/9/2026 |
We currently track 23 listings for the Omega Seamaster Professional Diver 300M Co-Axial Master Chronometer 210.30.42.20, with prices ranging from $5,264 – $5,891, from eBay.
The Omega Seamaster Professional Diver 300M Co-Axial Master Chronometer 210.30.42.20 exemplifies the brand's commitment to precision, durability, and style. Renowned for its robust design, this timepiece features a 42mm stainless steel case, offering both strength and a sleek aesthetic. The unidirectional rotating bezel, adorned with a ceramic insert, enhances its functionality for diving enthusiasts, while the helium escape valve at 10 o'clock ensures reliability under pressure. The striking blue dial is complemented by luminous hour markers and hands, ensuring visibility in low-light conditions. Powered by the Omega Co-Axial Master Chronometer Caliber 8800, this watch boasts exceptional accuracy and a 60-hour power reserve. The stainless steel bracelet, equipped with a folding clasp, provides comfort and security for everyday wear. As part of Omega's iconic Seamaster collection, this model embodies the spirit of adventure and exploration. It is designed to withstand the rigors of underwater activities while maintaining a sophisticated look suitable for any occasion. This watch runs true to size and is celebrated for its durability, making it a reliable choice for both divers and watch aficionados alike.
The Omega Seamaster Professional Diver 300M Co-Axial Master Chronometer 210.30.42.20 is a pre-owned Omega watch available for purchase across multiple resale platforms. Shop 23 active listings with prices ranging from $5,264 – $5,891. 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 | 6 | $5,264 – $5,891avg $5,626 |
| Status | Listings | Price range |
|---|---|---|
| UnknownListings where authentication status is not specified | 6 | $5,264 – $5,891avg $5,626 |
| Marketplace | Listings | Total value |
|---|---|---|
| eBay | 6 | $33.8K |
| Total | 6 | $33.8K |
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.
