‼️Rare‼️ Extremely rare, antique, Showa retro item. Authentic vintage piece. Currently in working condition. ‼️It's an old item, so there are scratches, stains, rust, and peeling, but the glass & dial are relatively clean. See photos. ※Rare‼️ Seiko TTF-531 transistor clock (commonly known as a bus clock or ship clock). ※This is a battery-powered clock equipped with a transistor movement, manufactured from around 1964 (Showa 39) to 1977 (Showa 52). ※It has a dust-proof structure that prevents dust from entering the dial and movement, and is resistant to vibration and changes in position, so it was widely used on buses and ships. ※A transistor clock is a clock that uses transistors (semiconductor elements) to tell time, and it was particularly popular from the late 1950s as a battery-powered mechanical clock. ★This is a later model that runs on one size D battery. Currently in working condition. ★It is a collector's item, and often shows signs of aging such as scratches, rust, and discoloration of the dial. ★This is a used item. There are scratches, stains, scuffs, blackening, peeling, etc. See photos. ★Please be sure to read the profile. ★Please refrain from purchasing if you are looking for a new item‼️ !! There are fine scratches and peeling. !! This is a used item, so the actual item may have scratches, stains, scuffs, blackening, peeling, etc., which may differ from the photos. Please be sure to understand this! Please purchase only if you agree. See photos. ★There is no box or warranty. Only the main body (in working condition). ★★I am the second owner. It is in the same condition as when it was purchased. Please refrain from making any claims. !! I will confirm again. There are scratches, stains, fine scratches, peeling, blackening, etc. that may not be visible in the photos. Please be aware of this. See photos. ★Please comment and purchase only if you understand. !! It may look clean in the photos, but there are scratches, stains, fine scratches, etc., so please be sure not to make any mistakes. ★To prevent trouble (due to scratches and stains), I have described it as such. Please be sure to ask questions in the comments before purchasing.