Ref. 210.32.42.20.01.001 · Diver
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Omega
An Omega Co-Axial Master Chronometer automatic, anti-magnetic to 15,000 gauss and METAS-certified, running at 25,200 vph with about 55 hours of power reserve. It powers date models across the Seamaster and Constellation lines.
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Seamaster Diver 300M collection · 7 watches






35 colorways
The forum market
Browse forum listings and their asking prices. Market+ adds the weekly trend.
Omega on the secondhand market
+7.0%
2026 so far · +0.9% to +13.8% · 42 matched watches
In line with the index
Divers as a group: +6.1% · 368 matched watches
Year-by-year readings →Owners widely praise the Omega Seamaster Diver 300M Co Axial Master Chronometer 42mm for its attractive design, comfortable wearability, and overall timepiece quality, with many finding the wave dial looks better in person and the watch wears smaller than its 42mm size. Some owners specifically highlight the satisfaction derived from the white dial and rubber strap combination, noting its "pop" and finding it a "phenomenal watch." The movement is also frequently admired, with one reviewer calling it an "excellent Master Chronometer movement." However, some reviewers and owners note potential issues such as dial printing color, date wheel alignment, and bezel misalignment, while one owner found the hour markers could be brighter for easier reading. The helium release valve is considered a vestigial element by one reviewer, and another owner found the titanium case softer than expected.
On real wrists · 12
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In collections
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