MainSprings

Hampden 16S Mainspring 2.70 .20 540 T end

Swiss made Mainspring for Hampden 16S Measurements in millimeters: 2.70 .20 540 barrel size 17mm T-end   

Hampden 3/0 Size Mainspring

Swiss made Mainspring for Hampden 3/0 size  Measurements in millimeters: 1.40 x 0.16 x 34.0 barrel size 12.5mm American size 5 x 16 1/2 x 13 1/2 T-end   

Hampden 8696 Mainspring 1.80 .17 420 T end

Swiss made Mainspring for Hampden  Measurements in millimeters: 1.80 x 0.17x 42.0 barrel size 14mm T-end   

Howard 12S Size Mainspring T end

Hamilton 12S Swiss made self lubricating mainspring T end   Height 1.80mm Width  0.16mm length 500mm barrel inner width 14.5mm   Photo of mainspring is for reference only not exact photo of the item.  

Illinois 16 Size 573 Mainspring 2.70 .21 540 TB

Illinois Mainspring White Alloy 16S size Illinois  Measures 2.70 x 0.210 520mm American size 18 x 3 x  20 1/2 TB end Made in Switzerland   Image is for reference only not the actual mainspring

Illinois 16S Mainspring 3.00 .15 680

Illinois Mainspring White Alloy 16S size Measures 3.00 x 0.15 680mm American sizes 21 x 7 x 26 3/4 Made in Switzerland   Image is for reference only not the actual mainspring

Illinois 18S Mainspring 2.90 .21 540 T

Illinois Mainspring White Alloy 18S size Illinois part # 47302 Measures 2.90 x 0.210 540mm American sizes 20 x 3 x 21.5   T end Made in Switzerland   Image is for reference only not the actual mainspring

Mainspring for Breitling 150

Original Swiss made Mainspring to fit Breitling 150

ST 97-4 Mainspring

Original Swiss made Mainspring to fit ST 97-4

Tissot 27-B-621 Mainspring

High quality Swiss made Nivaflex mainspring for Tissot 27-B-621

Universal Geneve 10 Mainspring

Original Swiss made Mainspring for Universal Geneve 10