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400 Day Clock Mainsprings - Select Size Required Below

See below for options.

400 Day Mainspring - Select Size Below.

400 day mainsprings are made of the finest grade steel, tempered evenly throughout the entire length. They are designed to provide the right amount of power for your 400 day clock. Each mainspring is coiled to a diameter small enough to slide into the barrel easily. No expensive mainspring winder needed! Our mainsprings are sized by the width of the spring and the inside diameter of the barrel in millimeters.

Sku: CM321
Description: Height: 12, Barrel Diameter: 32
Price: 1 (£8.88), 2+ (£8.44), 10+ (£7.99)
Sku: CM322
Description: Height: 12, Barrel Diameter: 24
Price: 1 (£6.95), 2+ (£6.60), 10+ (£6.26)
Sku: CM323
Description: Height: 14, Barrel Diameter: 32
Price: 1 (£7.36), 2+ (£6.99), 10+ (£6.62)
Sku: CM324
Description: Height: 19, Barrel Diameter: 32
Price: 1 (£9.84), 2+ (£9.35), 10+ (£8.86)
Sku: CM325
Description: Height: 19, Barrel Diameter: 36
Price: 1 (£14.70), 2+ (£13.97), 10+ (£13.23)
Sku: CM326
Description: Height: 21, Barrel Diameter: 32
Price: 1 (£7.25), 2+ (£6.89), 10+ (£6.53)
Sku: CM331
Description: Height: 12, Barrel Diameter: 25
Price: 1 (£7.74), 2+ (£7.35), 10+ (£6.97)
Sku: CM3310
Description: Height: 19, Barrel Diameter: 38
Price: 1 (£14.70), 2+ (£13.97), 10+ (£13.23)
Sku: CM3311
Description: Height: 20, Barrel Diameter: 38
Price: 1 (£16.65), 2+ (£15.82), 10+ (£14.99)
Sku: CM3312
Description: Height: 21, Barrel Diameter: 50
Price: 1 (£10.70), 2+ (£10.17), 10+ (£9.63)
Sku: CM332
Description: Height: 13, Barrel Diameter: 30
Price: 1 (£5.83), 2+ (£5.54), 10+ (£5.25)
Sku: CM333
Description: Height: 13, Barrel Diameter: 32
Price: 1 (£9.43), 2+ (£8.96), 10+ (£8.49)
Sku: CM334
Description: Height: 14, Barrel Diameter: 25
Price: 1 (£11.52), 2+ (£10.94), 10+ (£10.37)
Sku: CM335
Description: Height: 14, Barrel Diameter: 30
Price: 1 (£8.17), 2+ (£7.76), 10+ (£7.35)
Sku: CM336
Description: Height: 14, Barrel Diameter: 28
Price: 1 (£11.95), 2+ (£11.35), 10+ (£10.76)
Sku: CM337
Description: Height: 15, Barrel Diameter: 32
Price: 1 (£12.68), 2+ (£12.05), 10+ (£11.41)
Sku: CM338
Description: Height: 16, Barrel Diameter: 36
Price: 1 (£10.70), 2+ (£10.17), 10+ (£9.63)
Sku: CM339
Description: Height: 18, Barrel Diameter: 38
Price: 1 (£14.94), 2+ (£14.19), 10+ (£13.45)