Titan5 XS Mainspring

Titan No 5 XS Mainspring, 32.5 coils, 11.5 inches long, .111 wire, .755 OD, dimensions vary a little, fits BSA Meteor MK 1-5, Industry Brand B4 (U/L); Cometa 200, 300S; Diana 24, 26, 28, G46, 70, 71, 78, 79, 80; Vostock