DialTrends
Rolex

Sea-Dweller Steel Black

16660 Gloss
$19,962
-0.3% 24h-2.9% 7d-7.8% 1Y+19% 5Y
Score 33
Liquidity /100
RSI 62
Avg vol 42/day
2026 - In Production
Specifications
Brand
Rolex
Model
Sea-Dweller Steel Black
Reference Number
16660 Gloss
Case diameter
40mm
Case material
Stainless steel (Oystersteel)
Dial colour
Black
Bezel material
Aluminum insert, unidirectional rotatable
Bezel colour
Black
Crystal
Sapphire
Water resistance
1220m
Movement type
Automatic
Caliber
3035
Bracelet / strap
Oyster bracelet, steel
Complications
Date
Year launched
1978
Priced every 24h · comps too thin for candles
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DialTrends Investment Score
33
Sell
0-100 composite
  • Momentum (1Y): -7.8%
  • Liquidity score: /100
  • Scarcity score: /100
  • Volatility (30d ann.): 19.9%
  • RSI (14): 62
Market Metrics
Retail price
Discontinued
Premium over retail
-
30d change
-3.5%
Avg daily volume (30d)
42 sales
Fair value (model)
$19,962

Price Across Marketplaces

refreshed daily
MarketplacePriceListingsvs. avg
Chrono24$20,06918+0.5%
eBay (sold)Best deal$19,54736-2.1%
WatchBox$20,3368+1.9%
Bob's Watches$19,88313-0.4%
Collector Square$19,99121+0.1%
Market average
$19,965
Fair value
$19,962
Lowest listing
$19,547
Highest listing
$20,336
Arbitrage Scanner
Cross-marketplace spread is 4.0% ($789 gap). Buying at eBay (sold) ($19,547) and selling at market average implies a gross margin of $418 before fees.

About this reference

Sea-Dweller Steel Black Dial 40mm

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