Unfamiliar with this 395 model 16 size. Movement by Schild. Stable alloy shock mount balance. Unadjusted. Not lever set. No serial number. Nice dial and movement looks good. I assume not seriously intended for r.r. use? Marked Precision and probably accurate enough for 1 minute a week r.r. accuracy. Strange product for Gruen that sold very few of their fine p.w. to railroads.