This vintage square tin from Hairspring Vibrating Co. is a must-have for watch enthusiasts. The Dial Division Union City NJ model features a stone gem and is perfect for repairing watches. Made in the United States, this tool is a valuable addition to any watchmaker's collection. The brand is known for its high-quality products and this model is no exception. It is ideal for those looking for a reliable tool to repair their watches. The type of tool is tin, making it durable and long-lasting. Get your hands on this vintage square tin today and take the first step in repairing your watch.