zOwie Omega Discussion Forum

First off, congratulations on your new Railmaster. Here's a couple of thoughts gleaned from the sage advice of the forum experts:

For starters, the stated power reserve on your watch on the Omega site is 44 hours - I bought a Railmaster 2503.52 in August and have had excellent results (as much as 51 hours in one test) in testing the power reserve.

To get an accurate test, wind your watch fully by holding it to your ear and winding until you hear an extra click, which is the overwind protection kicking in, then noting the time and letting the power run its course. Keep in mind that the automatic winding and rotor action of the watch can depend on your level of activity while you wear your timepiece. I wear my Railmaster 10-12 hours per day, and i'm pretty active at the office. Even so, many automatic wearers will perform a "top up" wind once a week or so. For example, I don't always wear my Railmaster on Saturdays and Sundays, so Sunday night i usually do a top up in the evening while I also synchronize with a known accurate time source. This gives me a chance to monitor accuracy on a weekly basis, and the watch has consistently been at +2-3 seconds/day, well within certification standards.

That's one of the cool things about your machine, it's a living breathing thing that has some environmental variations depending on wearing conditions, weather, position and so forth.

Try the full power reserve test and see what happens. Incidentally I'm including a link from this site which has some cool comparison info on current and vintage Railmasters, with compliments to John Rochowicz. Enjoy your watch and let us know how it goes!