0598 Watch Mainspring 1.35 x 0.08 x 180 (7 1/4") (Calibers in description) 751 Series Ronda Crowns are Tap 90 and

Crowns are Tap 90 and range in diameter from 2

blade for slotted nut and hexagonal sleeve

08 x 254 (10 ")

part # 57315

50mm this elastic stretch cord is great for making stretch jewellery

0598 Watch Mainspring 1.35 x 0.08 x 180 (7 1/4") (Calibers in description) 751 Series Ronda Crowns are Tap 90 andDimensions: 1. 35 x 0. 08 x 180 (7 1 4") End Type: Tongue End Material: Genuine Eterna Calibers: Eterna 1462, GP52, GP 53, Glycine 50, Helbros 140, Mido 502, Movado 53, Movado 54, Peseux 140, Peseux 141, Peseux 142, Peseux 143, Peseux 144, Peseux 145, Peseux 146, Peseux 147, Peseux 290, Record 143, Rotary 470, Tudor 147, Universal 211