This watch is excellent. Comfortable to wear, easy to read in the light or the dark, and this one is very accurate! It gains about 2 seconds a month. Seiko paid attention to the details. If you're looking for a Railroad Approved watch, this one is hard to beat.

This is my forth or fifth Sekio watch and each one had a reason I got it. My normal day in and day out watch was a SNA-411 flight watch. It works great just a bit on the heavy side. With age my eye would like to see a white background. My new job has me outside a lot and needing a very accurate timepiece. The SNA-411 worked fine just a bit bulky. I have always like a very simple watch with high accuracy and the SGG-531 seem to have it. In the first few weeks it had about a 2 second loss. In the past month it has shown a loss of less than 2 second total checked against NBS each day when I got to work. It is easy to read, light in weight and to me at least looks good. It's day starts just after my morning shower and ends just before I go to bed. It's day may run from +120 degrees to below 30 degrees. I still have the SNA-411 and wear it for flight ops but my new best friend is the SGG-531--hands down. I might add I still have everyone of my Seikos from my AGS (second generation) to the newest the SGG-531. If you are looking for a very good watch for not much in cost I don't think you can beat this watch. It does what it should do gives you accurate dependable time in a simple format, besides I like trains.
br /Dane Walker

In the several years I've owned this watch I've worn it daily under various conditions -- and accidentally dropped it a few times -- but it consistently keeps accurate time to within about a second or better a week (about 3 to 4 seconds per month) and always looks brand new. I love the Railroad style face for its good looks as well as for its clarity. I've had more expensive watches but never had a more reliable watch or one that I liked as well. Incidentally, Seiko quartz watches are more accurate than expensive and prestigious Rolex Certified Chronometers which are guaranteed to only 120 seconds per month.

Very nice watch keeps good time. Nice large white face for ease of reading.

Simple, plain, easy to read, reliable, no-nonsense watch for work or sport. Good price, too.

I bought this as a Christmas gift for my husband after searching for several years to replace the one he broke. It's not easy to find a watch that is easy to read, has numbers from 1-12, the day, the date and a white face. This one has it all.

Great Watch this one replaces the same model that is over 20 years old this one will outlast me!

I bought this watch about 7 months ago. It hasn't lost or gained a minute. Easy to read. And it looks good, too. I think this is the best watch I've had in a long time, if ever. Hope to wear it for years to come.

If you want a simple, ACCURATE and easy-to-read timepiece without the gizmos that abound today, this is it. I have owned this watch for about 18 months, set it via WWV (National Bureau of Standards) from my shortwave radio, and it has NEVER been more than 1/2 second off. It tends to drift about a half second either side of dead on, probably due to the effects of seasonal temperature variations on the quartz crystal timebase. I am simply amazed at it's accuracy.

It is a precision timepiece I can live with for a long time. MASTERPIECE!