Quick view ETA 1237 1256 Mainspring ETA 1237, 1238, 1239, 1256, 1257, 1258, 1259 Automatic Mainspring $15.00
Quick view ETA 2416 Mainspring Self Lubricating ETA 2416 Winding Mainspring Non Magnetic Self Lubricating Nivaflex Made in Switzerland $15.00