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Genuine Longines Watch Mainsprings

Using Blue Steel Mainsprings

When alloy spring is not available watch repairpersons will use vintage blue steel mainsprings to get the watch ticking again.

Be sure to inspect the vintage blue steel spring for any kinks or signs of rust. A mainspring winder will be needed when using vintage mainsprings. To avoid breakage it is advisable follow this advice from the 1950 Swartchild Co. catalog. "Wind spring into barrel with mainspring winder, then release and wind again about 3 more times, as this allows spring to assume proper shape in the barrel, and also prevents breakage."
   
Genuine Longines Alloy Mainspring Caliber 14.17
$24.00
MS-LONG-14.17


    
Genuine Longines Alloy Mainspring Caliber 10L
$24.00
MS-LONG-10L
Width 1.60 mm, Strength 0.09 mm, Length 13 1/2 inches


    
Genuine Longines Alloy Mainspring Caliber 118
$24.00
MS-LONG-118
   
Genuine Longines Alloy Mainspring Caliber 119
$24.00
MS-LONG-119


    
Genuine Longines Alloy Mainspring Caliber 12L
$24.00
MS-LONG-12L


    
Genuine Longines Alloy Mainspring Caliber 12LNS
$24.00
MS-LONG-10LNS
   
Genuine Longines Alloy Mainspring Caliber 13.97
$24.00
MS-LONG-13.97


    
Genuine Longines Alloy Mainspring Caliber 13/15
$24.00
MS-LONG-13/15


    
Genuine Longines Alloy Mainspring Caliber 13/50
$24.00
MS-LONG-13/50
   
Genuine Longines Alloy Mainspring Caliber 13L
$24.00
MS-LONG-13L


    
Genuine Longines Alloy Mainspring Caliber 14.16
$24.00
MS-LONG-14.16


    
Genuine Longines Alloy Mainspring Caliber 18L
$24.00
MS-LONG-18L
   
Genuine Longines Alloy Mainspring Caliber 19A
$24.00
MS-LONG-19A


    
Genuine Longines Alloy Mainspring Caliber 22A
$24.00
MS-LONG-22A


    
Genuine Longines Alloy Mainspring Caliber 23M
$24.00
MS-LONG-23M
   
Genuine Longines Alloy Mainspring Caliber 27M
$24.00
MS-LONG-27M


    
Genuine Longines Alloy Mainspring Caliber 294
$24.00
MS-LONG-294


    
Genuine Longines Alloy Mainspring Caliber 30CH
$24.00
MS-LONG-30CH
   
Genuine Longines Alloy Mainspring Caliber 312
$35.00
MS-LONG-312


    
Genuine Longines Alloy Mainspring Caliber 320
$35.00
MS-LONG-320


    
Genuine Longines Alloy Mainspring Caliber 370
$24.00
MS-LONG-370
   
Genuine Longines Alloy Mainspring Caliber 490
$26.00
MS-LONG-490


    
Genuine Longines Alloy Mainspring Caliber 4LL
$24.00
MS-LONG-4LL


    
Genuine Longines Alloy Mainspring Caliber 5LN
$24.00
MS-LONG-5LN
   
Genuine Longines Alloy Mainspring Caliber 8M
$24.00
MS-LONG-8M


    
Genuine Longines Alloy Mainspring Caliber 9LT
$24.00
MS-LONG-9LT
Width 1.50 mm, Strength 0.10 mm, Length 15 3/4 inches

Longines 9L takes a different mainspring: Width 1.6 mm, Strength 0.095 mm, Length 13 1/2 inches



    
Genuine Longines Blue Steel Mainspring Caliber 10/26
$8.00
MS-LONG-STEEL-10/26
   
Genuine Longines Blue Steel Mainspring Caliber 10/26
$8.00
MS-LONG-STEEL-10/26


    
Genuine Longines Blue Steel Mainspring Caliber 10/32
$8.00
MS-LONG-STEEL-10/32


    
Genuine Longines Blue Steel Mainspring Caliber 10/85
$8.00
MS-LONG-STEEL-10/85
   
Genuine Longines Blue Steel Mainspring Caliber 10/85M
$8.00
MS-LONG-STEEL-10/85M


    
Genuine Longines Blue Steel Mainspring Caliber 10/86
$8.00
MS-LONG-STEEL-10/86


    
Genuine Longines Blue Steel Mainspring Caliber 10/86N
$8.00
MS-LONG-STEEL-10/86N
   
Genuine Longines Blue Steel Mainspring Caliber 10L
$8.00
MS-LONG-STEEL-10L


    
Genuine Longines Blue Steel Mainspring Caliber 11/84N
$8.00
MS-LONG-STEEL-11/84N


    
Genuine Longines Blue Steel Mainspring Caliber 11/87
$8.00
MS-LONG-STEEL-11/87
   
Genuine Longines Blue Steel Mainspring Caliber 11/87M
$8.00
MS-LONG-STEEL-11/87M


    
Genuine Longines Blue Steel Mainspring Caliber 11/88
$8.00
MS-LONG-STEEL-11/88


    
Genuine Longines Blue Steel Mainspring Caliber 12/91
$8.00
MS-LONG-STEEL-12/91
   
Genuine Longines Blue Steel Mainspring Caliber 12/92
$8.00
MS-LONG-STEEL-12/92


    
Genuine Longines Blue Steel Mainspring Caliber 12/99
$8.00
MS-LONG-STEEL-12/99


    
Genuine Longines Blue Steel Mainspring Caliber 12L
$8.00
MS-LONG-STEEL-12L
   
Genuine Longines Blue Steel Mainspring Caliber 13.56
$8.00
MS-LONG-STEEL-13.56


    
Genuine Longines Blue Steel Mainspring Caliber 13.67
$8.00
MS-LONG-STEEL-13.67


    
Genuine Longines Blue Steel Mainspring Caliber 13.81
$8.00
MS-LONG-STEEL-13.81
   
Genuine Longines Blue Steel Mainspring Caliber 13.97
$8.00
MS-LONG-STEEL-13.97


    
Genuine Longines Blue Steel Mainspring Caliber 13/34
$8.00
MS-LONG-STEEL-13/34


    
Genuine Longines Blue Steel Mainspring Caliber 17.25
$8.00
MS-LONG-STEEL-17.25
Width 2.0 mm, strength 0.18 and length 460 mm with T end.
Also for 17.27, 17.80, 17.90, 18.18, 18.25, 18.80, 18.90
   
Genuine Longines Blue Steel Mainspring Caliber 17.79
$8.00
MS-LONG-STEEL-17.79
Width 1.90 mm, strength 0.195 and length 460 mm, with Tongue end
Also for Longines 17.69, 17.69ABC, 17.80ABC, 17.89ABC, 17.89, 17.90, 17.90ABC, 18.79ABC, 18.80ABC, 18.89ABC, 18.89


    
Genuine Longines Blue Steel Mainspring Caliber 17.89
$8.00
MS-LONG-STEEL-17.89
Width 2.0 mm, strength 0.18 and length 460 mm, with Tongue end


    
Genuine Longines Blue Steel Mainspring Caliber 17.95M "T" End
$8.00
MS-LONG-STEEL-17.95M
   
Genuine Longines Blue Steel Mainspring Caliber 18.25
$8.00
MS-LONG-STEEL-18.25


    
Genuine Longines Blue Steel Mainspring Caliber 18.69m
$8.00
MS-LONG-STEEL-18.69M


    
Genuine Longines Blue Steel Mainspring Caliber 18.72
$8.00
MS-LONG-STEEL-18.72
   
Genuine Longines Blue Steel Mainspring Caliber 17.89M & 18.89M
$18.00
MS-LONG-STEEL-18.89M
For Longines 17.89M and 18.89M


    
Genuine Longines Blue Steel Mainspring Caliber 19.25
$8.00
MS-LONG-STEEL-19.25


    
Genuine Longines Blue Steel Mainspring Caliber 19.41
$8.00
MS-LONG-STEEL-19.41
   
Genuine Longines Blue Steel Mainspring Caliber 19.65
$8.00
MS-LONG-STEEL-19.65


    
Genuine Longines Blue Steel Mainspring Caliber 19.71
$8.00
MS-LONG-STEEL-19.71


    
Genuine Longines Blue Steel Mainspring Caliber 19.71A
$8.00
MS-LONG-STEEL-19.71A
   
Genuine Longines Blue Steel Mainspring Caliber 19.71N
$8.00
MS-LONG-STEEL-19.71N


    
Genuine Longines Blue Steel Mainspring Caliber 19.73N
$8.00
MS-LONG-STEEL-19.73N


    
Genuine Longines Blue Steel Mainspring Caliber 19.74N
$8.00
MS-LONG-STEEL-19.74N
   
Genuine Longines Blue Steel Mainspring Caliber 19.95/1
$8.00
MS-LONG-STEEL-19.95/1


    
Genuine Longines Blue Steel Mainspring Caliber 21.26
$8.00
MS-LONG-STEEL-21.26


    
Genuine Longines Blue Steel Mainspring Caliber 21.29
$8.00
MS-LONG-STEEL-21.29
   
Genuine Longines Blue Steel Mainspring Caliber 21.54
$8.00
MS-LONG-STEEL-21.54


    
Genuine Longines Blue Steel Mainspring Caliber 23M
$8.00
MS-LONG-STEEL-23M


    
Genuine Longines Blue Steel Mainspring Caliber 24.99 Hole End
$8.00
MS-LONG-STEEL-HOLE-24.99
   
Genuine Longines Blue Steel Mainspring Caliber 24.99 Tee End
$8.00
MS-LONG-STEEL-TEE-24.99


    
Genuine Longines Blue Steel Mainspring Caliber 27M
$8.00
MS-LONG-STEEL-27M


    
Genuine Longines Blue Steel Mainspring Caliber 37.9
$8.00
MS-LONG-STEEL-37.9
   
Genuine Longines Blue Steel Mainspring Caliber 37.93
$8.00
MS-LONG-STEEL-37.93


    
Genuine Longines Blue Steel Mainspring Caliber 3L
$8.00
MS-LONG-STEEL-3L


    
Genuine Longines Blue Steel Mainspring Caliber 4/21
$8.00
MS-LONG-STEEL-4/21
   
Genuine Longines Blue Steel Mainspring Caliber 4L
$8.00
MS-LONG-STEEL-4L


    
Genuine Longines Blue Steel Mainspring Caliber 4LL
$8.00
MS-LONG-STEEL-4LL


    
Genuine Longines Blue Steel Mainspring Caliber 5L
$8.00
MS-LONG-STEEL-5L
   
Genuine Longines Blue Steel Mainspring Caliber 7/45
$8.00
MS-LONG-STEEL-7/45


    
Genuine Longines Blue Steel Mainspring Caliber 8/28
$8.00
MS-LONG-STEEL-8/28


    
Genuine Longines Blue Steel Mainspring Caliber 8/28
$8.00
MS-LONG-STEEL-8/28
   
Genuine Longines Blue Steel Mainspring Caliber 8/37
$8.00
MS-LONG-STEEL-8/37


    
Genuine Longines Blue Steel Mainspring Caliber 8/47
$8.00
MS-LONG-STEEL-8/47


    
Genuine Longines Blue Steel Mainspring Caliber 8L
$8.00
MS-LONG-STEEL-8L
   
Genuine Longines Blue Steel Mainspring Caliber 8LN
$8.00
MS-LONG-STEEL-8LN


    
Genuine Longines Blue Steel Mainspring Caliber 8M
$8.00
MS-LONG-STEEL-8M


    
Genuine Longines Blue Steel Mainspring Caliber 9/32
$8.00
MS-LONG-STEEL-9/32
   
Genuine Longines Blue Steel Mainspring Caliber 9/35
$8.00
MS-LONG-STEEL-9/35


    
Genuine Longines Blue Steel Mainspring Caliber 9/35
$8.00
MS-LONG-STEEL-9/35


    
Genuine Longines Blue Steel Mainspring Caliber 9/35
$8.00
MS-LONG-STEEL-9/35
   
Genuine Longines Blue Steel Mainspring Caliber 9/47N
$8.00
MS-LONG-STEEL-9/47N


    
Genuine Longines Blue Steel Mainspring Caliber 9/47N
$8.00
MS-LONG-STEEL-9/47N


    
Genuine Longines Blue Steel Mainspring Caliber 9L
$8.00
MS-LONG-STEEL-9L
   
Genuine Longines Blue Steel Mainspring Caliber 9LT
$8.00
MS-LONG-STEEL-9LT


    
Genuine Longines Blue Steel Mainspring Caliber 17.95M "Hole" End
$8.00
MS-LONG-STEEL-17.95M-HE
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Otto Frei, Watch Parts Since 1930
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126 2nd St. Oakland, California 94607
Mailing Address: PO BOX 796, Oakland Ca. 94604
Freight Shipment Address: 119 3rd St. Oakland Ca. 94607 USA


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