Watch-Craft Mainspring 3053W – 1.25 x 0.085 x 7¼" – Dennison 3½ / 12½
Watch-Craft Mainspring 3053W – 1.25 x 0.085 x 7¼" – Dennison 3½ / 12½ – USA NOS. & E. Marshall Co., USA. Precision-engineered in white alloy for superiornon-magnetic ,unbreakable, andrustproof performance.