The LEICA ORIGINAL M3 REWIND GEAR 42.253.001.79 NEW is a replacement gear unit designed specifically for the LEICA ORIGINAL M3 camera model. Made by the renowned brand Leica, this gear is compatible with the rewind shaft of the camera and is a perfect fit for those looking to replace a broken or damaged part. This new gear unit ensures smooth and reliable functionality, making it an essential component for maintaining the overall performance of the camera.