Just received this working nice old watch and have gone down the rabbit hole! my searching led me to this awesome place with tons of info. From what I can find, the serial number 3554115 dates it to around 1919 and I have read a few interesting stories about Railroad standards and specials. Interested to see what you guys and gals think of this beauty! I think Electric means more geared for trolly and street cars, but I might have read wrong.