Rolex Sea-Dweller 4000 16660
Range published · high confidence
Worth about $8,950 pre-owned, with box and papers
- With box and papers
- $6,700–$11,200
- Watch only (about)
- $5,850–$9,750
Private-sale level for a pre-owned watch with box and papers, from recent eBay and auction results, weighted toward the newest; newest sale October 9, 2026.
Selling a 16660?See the range for your condition and set, then request offers. Free, no obligation, about a minute.
High confidence: 44 sold results in the last 24 months (42 on eBay and 2 at auction), 5 in the last 90 days, weighted toward recent sales (half-life 180 days). Range at least ±25% around the market price. In our walk-forward backtest over the past year, 91% of 25632 later sales fell inside high-confidence ranges like this one.
Prices last updated October 26, 2026.
Recent sales
71 sold results since Nov 4, 2023, newest first
- eBay sold
- $8,700 median25 sales, last 12 months
- Auction sold
- Too few in the last 12 months
Individual sale results behind our data, from eBay and auction houses. Each watch differs in condition and set.
- Oct 9, 2026$10,500
- Sep 28, 2026$7,815
- Sep 14, 2026$9,218
- Sep 14, 2026$4,480
- Aug 13, 2026$9,672
- Jul 27, 2026$8,000
- Jul 21, 2026$8,300
- Jul 16, 2026$8,900
- Jul 12, 2026$13,803
- Jun 3, 2026$7,269
- May 21, 2026$7,900
- Apr 23, 2026$11,619
- Apr 9, 2026$8,200
- Apr 8, 2026$8,000
- Feb 3, 2026$7,200
- Jan 21, 2026$7,877
- Jan 20, 2026$9,500
- Dec 26, 2025$15,450
- Dec 22, 2025$8,995
- Dec 21, 2025$8,699
- Dec 21, 2025$12,250
- Nov 18, 2025$8,157
- Nov 18, 2025$6,710
- Nov 15, 2025$13,400
- Nov 12, 2025$9,184
- Sep 30, 2025$12,345
- Sep 24, 2025$9,100
- Aug 2, 2025$9,100
- Jun 26, 2025$12,300
- May 15, 2025$8,600
- May 10, 2025≈ approximately $10,527USD, converted from CHF 8,750 at the ECB rate of May 9, 2025
- Apr 28, 2025$7,995
- Mar 23, 2025$6,095
- Mar 4, 2025$7,466
- Mar 2, 2025$8,502
- Feb 3, 2025$6,750
- Jan 31, 2025$6,200
- Dec 20, 2024$6,301
- Dec 14, 2024$6,600
- Dec 11, 2024$8,429
- Nov 30, 2024$6,500
- Nov 27, 2024$6,900
- Nov 26, 2024$8,295
- Nov 20, 2024$6,750
- Nov 9, 2024≈ approximately $10,035USD, converted from CHF 8,750 at the ECB rate of Nov 8, 2024
- Nov 6, 2024$7,199
- Oct 10, 2024$10,500
- Sep 27, 2024$8,307
- Sep 24, 2024$10,000
- Sep 19, 2024$7,000
- Sep 18, 2024$7,394
- Sep 8, 2024$7,300
- Sep 6, 2024$8,358
- Aug 27, 2024$7,900
- Aug 23, 2024$7,993
- Aug 16, 2024$7,100
- Jul 2, 2024$7,600
- May 24, 2024$7,600
- Apr 2, 2024$7,500
- Mar 30, 2024$7,411
- Mar 23, 2024$8,500
- Mar 10, 2024$7,806
- Mar 2, 2024$6,643
- Mar 1, 2024$7,600
- Feb 13, 2024$8,831
- Feb 6, 2024$7,300
- Jan 22, 2024$7,078
- Jan 16, 2024$10,696
- Nov 5, 2023≈ approximately $10,841USD, converted from CHF 9,750 at the ECB rate of Nov 3, 2023
- Nov 4, 2023≈ approximately $13,204USD, converted from CHF 11,875 at the ECB rate of Nov 3, 2023
- Nov 4, 2023≈ approximately $10,424USD, converted from CHF 9,375 at the ECB rate of Nov 3, 2023
Forum rows are posts on Reddit r/Watchexchange, RolexForums and WatchUSeek that the seller marked sold. The amount is the listed price when marked sold, not a confirmed sale price, and forum rows do not feed our price.
Price by condition
Not enough results with a recorded condition to split the range yet. The range above covers all 44 sold prices from 44 sales.
Price history
Show price history as a table
| Month | Median | Observations |
|---|---|---|
| Nov 2024 | $7,200 | 5 |
| Dec 2024 | $6,600 | 3 |
| Mar 2025 | $7,450 | 3 |
| May 2025 | $9,550 | 2 |
| Nov 2025 | $8,650 | 4 |
| Dec 2025 | $10,600 | 4 |
| Jan 2026 | $8,700 | 2 |
| Apr 2026 | $8,200 | 3 |
| Jul 2026 | $8,600 | 4 |
| Sep 2026 | $7,800 | 3 |
Sea-Dweller 4000 16660 price history over the years
- Forum (listed price when marked sold), quarterly, 73 posts
- eBay sold (from 2024), quarterly, 64 sales
Show long-range history as a table
| Quarter | Median | Posts |
|---|---|---|
| Q3 2012 | $5,100 | 3 |
| Q1 2013 | $5,950 | 4 |
| Q2 2013 | $5,000 | 3 |
| Q3 2013 | $4,650 | 3 |
| Q4 2017 | $11,000 | 4 |
| Q2 2018 | $17,500 | 4 |
| Q2 2019 | $9,900 | 3 |
| Quarter | Median | Sales |
|---|---|---|
| Q1 2024 | $7,600 | 9 |
| Q3 2024 | $7,750 | 10 |
| Q4 2024 | $6,950 | 8 |
| Q1 2025 | $6,750 | 5 |
| Q2 2025 | $8,600 | 3 |
| Q4 2025 | $9,100 | 8 |
| Q1 2026 | $7,900 | 3 |
| Q2 2026 | $8,000 | 5 |
| Q3 2026 | $8,600 | 8 |
The Sea-Dweller 4000 16660 at a glance
Reference 16660 is the Sea-Dweller 4000 in stainless steel, with a 40 mm case. It is discontinued, so the only way to buy one is pre-owned.
What our catalog records for it:
- Case: 40 mm, stainless steel.
- Bezel: unidirectional rotating bezel with black insert.
- Dial: black (matte early, glossy later).
- Movement: calibre 3035.
It is one of 6 references in our Sea-Dweller catalog. Similar references to compare: Sea-Dweller 126600 (Oystersteel (904L stainless steel)), Sea-Dweller 126603 (yellow Rolesor (Oystersteel and yellow gold)) and Sea-Dweller 4000 116600 (904L stainless steel).
Sold results for the 16660, summarised:
- Fair value now: $6,700–$11,200.
- Midpoint of recent market prices: $8,950.
- Newest observation: October 9, 2026.
- Observations behind the estimate: 44.
What affects the price
Condition. Ranges by condition (a condition shows a range only once it has enough results of its own):
- Unworn: not enough market data yet.
- Excellent: not enough market data yet.
- Good: not enough market data yet.
- Fair: not enough market data yet.
Dial. The catalog records the dial as black (matte early, glossy later). An original, undamaged dial matters more to buyers than almost any other part.
Case condition. A steel case wears in daily use; buyers look at the lugs and case sides for dents and for signs of heavy polishing.
Service history. Paperwork showing when the calibre 3035 was last serviced, and what was replaced, gives buyers confidence.
Bezel and insert. A cracked, faded or swapped insert is easy to spot in photos. The record for this reference reads: unidirectional rotating bezel with black insert.
Box and papers. A watch sold with its box and matching papers is easier to sell than one without.
Retail reference. We don't show a list price for this reference, because we only publish one we can confirm from a source we can cite.
Recent movement. Change over the past year: +8.8% over 12 months.
Tips for buyers
- Make sure the papers name reference 16660 and that the case measures 40 mm.
- Have an independent watchmaker inspect it within the return window.
- Compare several examples before you decide, using the price data on this page.
- Inspect the bezel closely; it should be unidirectional rotating bezel with black insert.
- Ask when the calibre 3035 was last serviced, and by whom.
- Ask whether the dial (black (matte early, glossy later)) is original to the watch.
Tips for sellers
- Put the box, papers, spare links and receipts together before you contact buyers.
- Leave the case as it is: buyers prefer unpolished lines.
- Take clear daylight photos of the dial, case, bezel and bracelet.
- Compare each offer with the sold results summarised above.
Frequently asked questions
What is the Rolex Sea-Dweller 4000 16660?
The 16660 is a Sea-Dweller 4000 with a 40 mm case in stainless steel. Bezel: unidirectional rotating bezel with black insert. Dial: black (matte early, glossy later). Movement: calibre 3035. It is discontinued.
What is a Rolex Sea-Dweller 4000 16660 worth?
Recent sold results put the 16660 at $6,700–$11,200, from 44 market observations. A specific watch can sit higher or lower depending on its condition and set.
What did the Rolex 16660 cost new?
We don't show a retail price for the 16660 yet. We only publish a retail figure we can confirm from a source we can cite.
How can I tell a real Rolex 16660 from a fake?
Match the specification first: case 40 mm in stainless steel; bezel unidirectional rotating bezel with black insert; dial black (matte early, glossy later); movement calibre 3035. Buy where returns are possible, and have a watchmaker open the watch and check that the papers name reference 16660.
Where can I sell a Rolex 16660?
You can sell a 16660 to a dealer, consign it to an auction house or sell it privately. Whichever you choose, ask for several offers and have the papers ready.
Is the Rolex 16660 still made?
No. The 16660 is discontinued, so you can only buy one pre-owned.