The movement is in excellent condition and one would be hard pressed to find blemishes. It is marked Elinvar under the balance wheel.
Just FYI, the last digit of the serial number (4) is obscured by the balance wheel. The case is marked "Ball Official RR Standard" and is 10k yellow gold filled. It is in excellent condition with an amazing engraving of a train on the back. Above the train is engraved "From Your Alton Railroad Friends Jan 1 1945". There are no dents, gouges, deep scratching or brassing anywhere on this watch, just minor pocket wear.
It looks nearly new especially considering it's over 75 years old. The bow is very tight and shows no signs of chain wear. The crown is super crisp. The bezel and back screw on beautifully. The domed glass crystal appears as new.
The original porcelain dial is bright, shiny and near perfection. There is a tiny blemish on the edge of the seconds hand sub dial (about the 3 seconds area). I hadn't noticed it until just now when doing inspection under magnification.It is nearly invisible without magnification. Overall, this an amazing watch with no caveats. If you are a "Ball" collector or just want a truly fine watch, this is one you should consider. The item "Ball Hamilton 998 23 Jewel Elinvar 16 size pocket watch with engraved train case" is in sale since Sunday, August 9, 2020.
This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watches\Pocket Watches". The seller is "lkrk387" and is located in Traverse City, Michigan. This item can be shipped to United States.