That's a fine watch, properly exhibited.
Back before automatic block signals, when trains ran by "timetable and train order", having "the right time" was of the utmost importance. If you were a westbound extra running against an eastbound scheduled train, you had to be "off the main" and clear the scheduled train by 5 minutes prior to its arrival time. If your "time was off" (or the other guy's), there could be bad consequences.
That's why there were watch inspectors and the rules that operating employees had to keep a certain grade watch, get it inspected, and carry the certificate of inspection with them.
Gradually, things changed, and so did the watches.
And the railroad rules regarding watches got modified, as well.
I believe one of the first big changes came with the introduction of the "Accutron" watch by Bulova in 1960, which used a tuning fork inside to maintain accuracy.
Quite a few of these were sold with "traditional" railroad faces. Some guys bought them to replace their pocket watches on the job.
Around 1969, Seiko came out with quartz-movement watches, and again these were offered with a railroad face. In time, these began to replace the Bulova watches as "standard equipment".
Then again, there were some old-timers who kept using their pocket watches, right to their retirement.
By the time I hired out (1979), the requirements of having watch inspections were over (at least on Conrail). By this time, all the territory had either an automatic or manually (dispatcher/operator) controlled block system and timetable operation "by the watch" was a thing of the past.
So... to reflect this... the rules now required just "a reliable watch".
I had a couple of Seiko wristwatches I used for a time, but I never cared for wristwatches (or anything on my wrists). So sometimes I'd use a cheap pocket watch with a quartz movement -- quite accurate. But even they proved fragile over time.
So... finally... for the last ten years or so at work (might have even been longer), I found a little "Anywhere watch" at the local Radio Shack for the grand sum of $4.99. It kept good time, and I could set it right into the air gauge on an AEM-7 and aim the overhead light at it. Controlled the light with a toggle switch under the radio. It made checking time easy. Still have it, it still works today!