This is a vintage wind-up travel alarm clock made by Linden in Japan during the mid-20th century. The clock is designed in the shape of a turtle and made of brass. It features an analog display, wind-up movement, and an alarm function. The clock is an original piece and has a vintage/retro style. Hinge works but could use a fixing. Seems to keep time well. One dial on back seems bent,not sure if it's supposed to be that way. Pointed out in pic. Please message me with any questions