I don't know the exact age, but... it's an old, hand-wound mechanical watch. *I believe the dial, etc., has been redone (repaired, etc.) ● It is in working order. *Overhaul history is unknown. *Being old, it may have daily variations depending on the usage environment. *Please purchase only if you understand mechanical watches (hand-wound) (unlike quartz battery watches). ● Size... 34mm (excluding the crown) + the crown is 2-3mm, so → Approximately 35-36mm total I don't know the detailed specifications. ・Plastic crystal ・Stainless steel case ・Aftermarket military-style strap (26cm including buckle) ● Due to reasons such as the product being different from what you expected, and to prevent swapping, please purchase only if you agree to no returns/no exchanges. *I repeat, it is old, please confirm the description carefully and make your purchase after carefully reviewing the photos.