Look at this beauty 16s E. Keller & Son, Keystone J. Boss 25 Years Swingout Railroad Model Pocket Watch Case. This case measured 53.2 mm in diameter, 74.3 mm from bottom to the top bow and it’s in excellent condition. This case has no dings, dents or wears, just a bit scratches. Brand new old stock plastic crystal just installed. If you have any questions, please no hesitate to ask and I’ll do my best to answer your needs. Good luck, stay safe and thank you so much for looking.