This vintage mechanical watch clock winding key is an original metal tool with a silver finish. Designed to wind up mechanical clocks, this key is a unique and decorative collectable item. Perfect for collectors or those looking to add a touch of nostalgia to their home décor, this clock winding key is sure to be a conversation starter. Made from high-quality steel, this durable and efficient tool is a must-have for anyone with a love for classic timepieces. VINTAGE MECHANICAL WATCH CLOCK WINDING KEY CAN YOU PLEASE STUDY THE IMAGES VERY CAREFULLY AS THEY FORM PART OF THE DESCRIPTION ANY QUESTIONS PLEASE JUST ASK have measured the square hole & it is 5mm between sides. FAST dispatch
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