OMEGA 28035231
Seamaster Aqua Terra 150M Co-Axial 39.2 Railmaster
What Should You Pay?
Estimated fair market values. Actual prices vary by condition, completeness, and seller.
The Omega Railmaster 2803.52.31 is a member of the Seamaster Aqua Terra collection, reimagining the original Railmaster launched in 1957. This model features a 39.2mm stainless steel case and is powered by the Omega 2403 co-axial movement. Designed as an anti-magnetic tool watch, it offers a blend of functionality and classic style.
Specifications
Movement
More from Railmaster
View all Railmaster references →Related Guides & Articles
The most popular watches on the secondhand market right now — which brands and models hold value, trade most frequently, and offer the best deals.
Current secondhand Omega prices across all collections — Speedmaster, Seamaster, Constellation and more. Median prices, ranges, and best value picks.
Learn how to compare pre-owned watch prices across marketplaces — understand market value, spot overpriced listings, and find the best deal on the watch you want.
The best deals on pre-owned watches this month — undervalued models from Rolex, Omega, Tudor, Seiko, and more, with current market prices and why they're worth buying.