Caseback Terminal

Omega Seamaster Diver 300M 210.30.42.20.01.001

Black · 42mm · Cal. 8800

Market value

Full set · Excellent condition

$4,800

Typical sale range $4,300 – $5,100

Built from 2 recorded sales and 94 asking prices on eBay, plus a market price we check every week. Updated 2 min ago.

See all 92 listingsValue by condition

Price history

We record this watch's value every day starting September 29, 2026. The chart fills in as the days go by.

Value by condition

What a 210.30.42.20.01.001 sells for in each condition, with and without its box and papers.

ConditionFull setPapers onlyBox onlyWatch only
Unworn$5,150$4,950$4,850$4,600
Excellent$4,800$4,600$4,500$4,300
Good$4,450$4,300$4,200$4,000
Fair$4,050$3,850$3,800$3,650

Unworn: never worn, often with stickers. Excellent: light wear. Good: visible wear. Fair: heavy wear or needs work. A full set has the original box and papers. Listings that don't say are valued as a typical listing.

For sale now

All 92 on the live feed ›

Buy It Now, best priced first

  1. OMEGA Seamaster Diver 300M 210.30.42.20.01.001Unworn · Full set · Best Offer · Ships from Japan$5,05098%
  2. 42026: Omega Seamaster Diver 300M, Ref. 210.30.42.20.01.001, Box and 2018 Card2018 · Pre-owned · Full set$4,750103%
  3. OMEGA Seamaster Professional 210.30.42.20.01.001 Black Men's Watch New in BoxUnworn · Box only · Ships from Japan$5,073105%
  4. Omega 210.30.42.20.01.001 NEW 999 Black Dial Box & PapersUnworn · Full set$5,388105%
  5. Omega Seamaster Diver 300 M Full Set Black Dial 42MM 210.30.42.20.01.001 210.30Good · Full set · Ships from South Korea$4,674105%
  6. OMEGA Seamaster 210.30.42.20.01.001 Automatic Men's Black 42MM Watch Box PapersPre-owned · Full set$4,976108%

Recent sales

All Omega sales ›Sold on eBay ›
  1. Omega Seamaster Diver 300M 210.30.42.20.01.001Sep 27 · Buy It Now · Good · Full set$4,10192%
  2. Omega Seamaster Diver 300M 210.30.42.20.01.001Sep 27 · Auction, 77 bids · Good · Watch only$2,02751%

About the 210.30.42.20.01.001

Brand
Omega
Model
Seamaster Diver 300M
Reference
210.30.42.20.01.001
Version
Black
Case
42mm
Movement
Cal. 8800

Questions

How much is a Omega Seamaster Diver 300M 210.30.42.20.01.001 worth?

About $4,800 as a full set in excellent condition, with most selling between $4,300 and $5,100. An unworn one brings about $5,150; a watch without its box and papers about $4,300.

How much do box and papers add?

A 210.30.42.20.01.001 without its box and papers typically sells for about 10% less than a full set in the same condition. The original papers (the warranty card) matter most.

Where do these prices come from?

Caseback Terminal follows every eBay auction and Buy It Now listing for the 210.30.42.20.01.001, records final prices as they close, and blends them with current asking prices and a market price we check against outside guides every week (last on September 29, 2026). More on how values work.

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