Omega Seamaster Railmaster Chronometer

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Seamaster Railmaster Chronometer is a wristwatch by Omega in the Railmaster range.

The original Railmaster was first introduced in the year 1957 and strengthened the already existing connection between Omega and the railroad. Although the company hat officially delivered pocket watches to railway companies since 1895, the Railmaster was the first watch that was designed specifically for railway employees, scientists, technicians and electricians as well as all other professions who worked with or in the vicinity of strong electric currents, for it had at that time a special antimagnetic double caseback to protect the movement against the damaging effects of electric fields.

This 2003 introduced model is a revised re-edition of the classic Omega Railmaster. It is equipped with the high-quality movement with coaxial escapement, developed at the end of the 90s. Meanwhile, the Railmaster range is no longer produced.

The elegant, perfectly legible watch was also available as Seamaster Railmaster Chronograph and in an oversized version (49.2 mm) as Seamaster Railmaster XXL Chronometer.


2803.52.37 stainless steel, leather strap
2503.52.00 stainless steel, stainless steel bracelet
2802.52.37 stainless steel, leather strap 41 mm
2502.52.00 stainless steel, stainless steel bracelet 41 mm
2504.52.00 stainless steel, stainless steel bracelet Midsize 36.2 mm


Self-winding movement Omega 2403 (basis Omega 2500 bzw. ETA 2892-A2), 28,800 A/h
Co-axial escapement
COSC certified chronometer
Rhodinated movement
Power reserve 44 h


Stainless steel, polished/satin-finished
D 39.2 mm (auch: 36.2 and 41 mm), H 11 mm
Domed sapphire crystal
Screw-in back with sapphire crystal
Waterproof to 150 m


Hands and indexes with luminous material Superluminova


Hours, minutes, central seconds


Crocodile leather strap with safety folding clasp or stainless steel bracelet


3 years


  • Omega-Uhren. Kaleidoskop einer bekannten Swiss Marke; Author: Anton Kreuzer; ISBN 3853783546
  • Omega-Modelle; Author: Anton Kreuzer; ISBN 3853784186
  • Omega Sportuhren; ISBN 3871880817
  • Das ZEITGEFÜHL-Uhrenbuch; Author: Gerd-Lothar Reschke; ISBN 3-938607-61-0