Omega Seamaster Railmaster XXL Chronometer

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Seamaster Railmaster XXL Chronometer is a wristwatch by Omega in the Railmaster range. It is an oversized version of the 2003 newly produced Omega Seamaster Railmaster Chronometer.

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 presented here in an oversized version (49.2 mm case diameter) with a former Unitas pocket watch calibre, equipped with manual winding. The elegant, perfectly legible watch was also delivered in three smaller sizes as well as Chronograph.


2803.52.37 stainless steel, leather strap
2806.72.31 stainless steel, mother of pearl white gold, leather strap red gold, leather strap


Manual winding movement Omega 2201 (basis Unitas 6498-2), 21,600 A/h
COSC certified chronometer
Rhodinated movement, with Geneva stripes and gold plated engraving
Power reserve 53 h


Stainless steel, polished/satin-finished / white gold / red gold
D 49.2 mm, H 12.5 mm
Domed sapphire crystal
Screw-in back with sapphire crystal
Waterproof to 150 m


Black (gold version: black enamel)
Hands and indexes with luminous material Superluminova


Hours, minutes, small seconds


Brown or black alligator leather strap with tang-type buckle


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