Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Loop End Clock Mainsprings (9 mm to 25 mm height) by PERRIN Sale $14.30 | / SKU CP-M900L 9.00 x .20 x 850 open loop - $14.30 9.00 x .28 x 650 open loop - $14.30 9.00 x .28 x 1275 open loop - $16.40 9.00 x .30 x 2000 open loop - $21.80 9.00 x .36 x 1500 open loop - $18.20 9.00 x .40 x 1500 open loop - $18.20 9.00 x .45 x 1200 open loop - $16.40 9.00 x .45 x 1600 riveted loop - $18.20 9.50 x .28 x 650 open loop - $14.30 9.50 x .28 x 750 open loop - $14.30 9.50 x .28 x 900 open loop - $15.50 9.50 x .28 x 1275 riveted loop - $16.40 9.50 x .33 x 850 open loop - $14.30 9.50 x .35 x 2330 open loop - $23.70 9.50 x .36 x 1200 open loop - $16.40 9.50 x .36 x 1500 open loop - $18.20 9.50 x .38 x 900 open loop - $15.50 9.50 x .38 x 1325 open loop - $16.40 9.50 x .41 x 1100 open loop - $15.50 9.50 x .41 x 1350 open loop - $16.40 9.50 x .43 x 2400 riveted loop - $23.70 9.50 x .48 x 1200 open loop - $16.40 10.20 x .36 x 1350 open loop - $37.20 11.00 x .40 x 1500 open loop - $37.20 11.00 x .46 x 1200 open loop - $28.00 11.00 x .46 x 1500 open loop - $28.00 11.00 x .46 x 2000 riveted loop - $28.00 11.00 x .50 x 2000 open loop - $37.20 12.00 x .45 x 2400 riveted loop - $37.20 12.50 x .35 x 1200 open loop - $28.00 12.50 x .35 x 1250 open loop - $28.00 12.70 x .41 x 1650 open loop - $25.50 12.70 x .46 x 1500 riveted loop - $25.50 13.50 x .24 x 2000 open loop - $28.00 14.25 x .35 x 850 open loop - $28.00 14.30 x .38 x 1950 open loop - $37.20 14.30 x .41 x 1650 riveted loop - $37.20 14.30 x .46 x 2400 riveted loop - $37.20 14.35 x .32 x 950 riveted loop - $28.00 14.50 x .30 x 1200 open loop - $22.00 15.00 x .40 x 1660 riveted loop - $46.90 15.00 x .45 x 1660 open loop - $46.90 15.00 x .45 x 1800 open loop - $46.90 16.00 x .25 x 1550 open loop - $32.20 16.00 x .33 x 1725 open loop - $32.20 16.00 x .35 x 2700 riveted loop - $41.30 16.00 x .45 x 2500 riveted loop - $56.60 16.50 x .40 x 2400 open loop - $46.90 16.50 x .46 x 2500 open loop - $60.50 17.00 x .26 x 2400 open loop - $46.90 17.00 x .40 x 1660 riveted loop - $32.20 17.00 x .40 x 1800 riveted loop - $46.90 17.00 x .45 x 1800 open loop - $46.90 17.50 x .38 x 2700 riveted loop - $46.90 17.50 x .40 x 2000 riveted loop - $46.90 17.50 x .46 x 2400 open loop - $60.50 19.00 x .25 x 1800 open loop - $32.20 19.00 x .30 x 1800 riveted loop - $30.70 19.00 x .31 x 2500 riveted loop - $46.90 19.00 x .36 x 2700 riveted loop - $41.30 19.00 x .40 x 1950 open loop - $46.90 19.00 x .40 x 2500 open loop - $41.30 19.00 x .40 x 4000 riveted loop - $23.00 19.00 x .43 x 3000 riveted loop - $41.30 19.00 x .45 x 2000 riveted loop - $41.30 19.00 x .45 x 2400 riveted loop - $40.30 19.00 x .45 x 2400 made in India (riveted loop) - $16.10 20.00 x .45 x 1800 open loop - $59.00 20.60 x .46 x 2400 riveted loop - $59.00 22.00 x .40 x 1800 open loop - $59.00 22.00 x .46 x 2400 riveted loop - $81.10 22.00 x .50 x 2200 open loop - $81.10 25.00 x .45 x 2400 riveted loop - $95.80 9.00 x .20 x 850 open loop 9.00 x .28 x 650 open loop 9.00 x .28 x 1275 open loop 9.00 x .30 x 2000 open loop 9.00 x .36 x 1500 open loop 9.00 x .40 x 1500 open loop 9.00 x .45 x 1200 open loop 9.00 x .45 x 1600 riveted loop 9.50 x .28 x 650 open loop 9.50 x .28 x 750 open loop 9.50 x .28 x 900 open loop 9.50 x .28 x 1275 riveted loop 9.50 x .33 x 850 open loop 9.50 x .35 x 2330 open loop 9.50 x .36 x 1200 open loop 9.50 x .36 x 1500 open loop 9.50 x .38 x 900 open loop 9.50 x .38 x 1325 open loop 9.50 x .41 x 1100 open loop 9.50 x .41 x 1350 open loop 9.50 x .43 x 2400 riveted loop 9.50 x .48 x 1200 open loop 10.20 x .36 x 1350 open loop 11.00 x .40 x 1500 open loop 11.00 x .46 x 1200 open loop 11.00 x .46 x 1500 open loop 11.00 x .46 x 2000 riveted loop 11.00 x .50 x 2000 open loop 12.00 x .45 x 2400 riveted loop 12.50 x .35 x 1200 open loop 12.50 x .35 x 1250 open loop 12.70 x .41 x 1650 open loop 12.70 x .46 x 1500 riveted loop 13.50 x .24 x 2000 open loop 14.25 x .35 x 850 open loop 14.30 x .38 x 1950 open loop 14.30 x .41 x 1650 riveted loop 14.30 x .46 x 2400 riveted loop 14.35 x .32 x 950 riveted loop 14.50 x .30 x 1200 open loop 15.00 x .40 x 1660 riveted loop 15.00 x .45 x 1660 open loop 15.00 x .45 x 1800 open loop 16.00 x .25 x 1550 open loop 16.00 x .33 x 1725 open loop 16.00 x .35 x 2700 riveted loop 16.00 x .45 x 2500 riveted loop 16.50 x .40 x 2400 open loop 16.50 x .46 x 2500 open loop 17.00 x .26 x 2400 open loop 17.00 x .40 x 1660 riveted loop 17.00 x .40 x 1800 riveted loop 17.00 x .45 x 1800 open loop 17.50 x .38 x 2700 riveted loop 17.50 x .40 x 2000 riveted loop 17.50 x .46 x 2400 open loop 19.00 x .25 x 1800 open loop 19.00 x .30 x 1800 riveted loop 19.00 x .31 x 2500 riveted loop 19.00 x .36 x 2700 riveted loop 19.00 x .40 x 1950 open loop 19.00 x .40 x 2500 open loop 19.00 x .40 x 4000 riveted loop 19.00 x .43 x 3000 riveted loop 19.00 x .45 x 2000 riveted loop 19.00 x .45 x 2400 riveted loop 19.00 x .45 x 2400 made in India (riveted loop) 20.00 x .45 x 1800 open loop 20.60 x .46 x 2400 riveted loop 22.00 x .40 x 1800 open loop 22.00 x .46 x 2400 riveted loop 22.00 x .50 x 2200 open loop 25.00 x .45 x 2400 riveted loop Height x Strength x Length (mm) Chevron down icon 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Loop End Clock Mainspring a German made Loop End Mainspring. They are available in a variety of sizes.