Omega Seamaster Railmaster Co Axial Master Chronometer Small Seconds 38mm
Ref. 235.12.38.20.13.001 · Sport
$6,400In stock
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Case
- Diameter
- 38mm
- Thickness
- 12.36mm
- Lug-to-lug
- 44.92mm
- Lug width
- 19mm
- Material
- Stainless Steel
- Finish
- Steel
- Water resistance
- 150m
Crystal & dial
- Crystal
- Sapphire
- Shape
- Domed
- Dial color
- Brown
Movement
- Caliber
- Omega 8804
- Type
- Automatic
- Power reserve
- 55h
- Hacking
- Yes
- Hand-winding
- Yes
Design language
- Case shape
- round
- Dial style
- sunburst
- Sub-dials
- 1
- Bezel
- fixed
- Bracelet
- leather
- Hands
- baton
AI-detected from the product image
Seamaster Railmaster collection · 3 watches
2 colorways
Market
Retail$6,400
eBay listings
- OMEGA Seamaster Railmaster 235.10.38.20.13.001 Automatic Men's Watch_892012Pre-owned - Good · JP$5,188
- 2025 Omega Seamaster Railmaster 235.10.38.20.13.001 38MM Brown Steel Box PaperPre-owned - Good · US$5,450
- Omega Seamaster Railmaster 235.10.38.20.13.001 Stainless Steel 38mm #KMW1477New with box and papers · JP$5,557
Lowest displayed prices first.
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Retail stock & market context
Omega on the secondhand market
+7.0%
2026 so far · +0.9% to +13.8% · 42 matched watches
In line with the index
Year-by-year readings →Similar watches
Community
Owners widely praise the Omega Seamaster Railmaster Co Axial Master Chronometer Small Seconds 38mm as an underrated, rugged, and versatile daily wearer, appreciating its coaxial movement and textured dial. Some owners note the 38mm case wears well, with one finding it a perfect fit on a 6.25" wrist and another mentioning the quick-adjust clasp. Accuracy is reported as excellent, with one owner seeing +1.5 seconds per day. However, a segment of owners express a desire for a version without the "faux patina" and vintage-toned lume, finding it unremarkable compared to other Seamasters. On balance, owners and reviewers rate the Omega Seamaster Railmaster Co Axial Master Chronometer Small Seconds 38mm highly for its understated tool watch aesthetic and comfortable wearability.
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