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Waltham Watch Mainsprings

Mainsprings for American made Waltham watches can also be ordered at the bottom of the page by the serial number stamped on the movement.

The mainsprings listed here are by factory part number for the spring and the measurements for those who have the gauge and skill to measure a spring. To find factory part number, which is listed for each spring listed you would need a serial number book as well as Waltham parts book by watch grade. Old time watchmakers had these books and sometimes they can be purchased at local AWI or NAWCC meeting. I have seen serial number information on American Watches posted on a few websites over the past five years

   
$50.00 $45.00 On Sale!
Order Waltham Mainsprings By Serial Number

Just click order and in either the order instuction box, or the order comments box enter the serial number found stamped on the watch movement. We will then look up the serial number and send you the right mainspring.

WALTHAM-MS-SS#
$50.00
Now on Sale $45.00!

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Waltham White Alloy Mainspring JA-701
$39.00

Size 18, 1877 and 1879 Models factory mainspring # 2203, width in mm 2.9, strength in mm 0.225, length inches 21, end T

For 18 size Waltham Model 1857 use this spring JA-701 which is strength Dennison 1 1/2 or Waltham Spring JA-703 Strength 2 1/2 (0.215 mm). Another option is the Illinois Spring JA-404, which is also a T End, Dennison strength 2 (0.22 mm). The no longer made 1857 springs were listed as 23 inches long with strength 0.22 mm and height/width 2.90 mm.

JA-701

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Waltham White Alloy Mainspring JA-703
$39.00 $32.00 On Sale!

Watham Size 18, 1877 and 1879 Models factory mainspring # 2203, width in mm 2.9, strength in mm 0.215, length inches 21, end T

For 18 size Waltham Model 1857 use this White Alloy Mainspring JA-703 Dennison Strength 2 1/2 (0.215 mm). Another option is the Illinois Spring JA-404, which is also a T End, Dennison strength 2 (0.22 mm). The no longer made 1857 No. 2200 Old Style and No. 2202 1857 New Style springs were listed as 20 inches long strength 0.20 and width 2.80, and 23 inches long with strength 0.22 mm and height/width 2.90 mm.

JA-703
$45.00
Now on Sale $32.00!

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Waltham White Alloy Mainspring JA-705
$39.00 $26.95 On Sale!

Size 18, 1883 model factory mainspring # 2205, width in mm 3, strength in mm 0.22, length inches 21, end T

JA-705

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-710

Size 16, 1899 and 1908 models factory mainspring # 2227/2267, width in mm 2.8, strength in mm 0.18, length inches 25, end HOLE.

JA-710

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-713
$39.00 $26.95 On Sale!

Size 16, 1888 model factory mainspring numbers 2218 and 2267, width in mm 2.8, strength in mm 0.19, length inches 25, end HOLE

JA-713

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-715
$39.00 $26.95 On Sale!

Size 16, Running Barrel Model 1945 factory mainspring numbers 2247 and 2268, width in mm 2.6, strength in mm 0.17, length inches 19-1/2, end D.B. & HOLE

JA-715

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-717
$39.00 $26.95 On Sale!

Fit 14 size and 10 size Colonial A model, factory mainspring number 2234, width in mm 1.3, strength in mm 0.175, length inches 19, end HOLE

JA-717

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-718
$39.00 $26.95 On Sale!

Size 14 Running Barrel Colonial R Model, factory numbers 2252 and 2269, width in mm 1.62, strength in mm 0.17, length inches 19, end HOLE

JA-718

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring 12 Size 1894 & 14 Size 1897
$39.00 $26.95 On Sale!

For Waltham 12 Size 1894 model and Waltham 14 size 1897 model replaces factory mainsprings #"s 2224A and 2279. The width in mm is 2.15, strength (thickness) in mm 0.16, length inches 19-1/4, Hole end.

JA-720

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-725
$39.00 $26.95 On Sale!

Size 6 and 8 size 1873 model, factory mainspring # 2215, width in mm 1.9, strength in mm 0.21, length inches 16, end T

JA-725 , no longer available. Use JA-726

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Illinois Size 16 & Waltham 14 Size White Alloy Mainspring # JA-421

For 14 and 16 Size, factory # 47334, thin barrel .150". Spring width in mm is 2.5, strength in mm 0.21, length in inches is 20, with end T

Also this is the replacement mainspring for the Waltham 14 size 2211 mainspring.
Swiss Made White Alloy Mainspring

JA-421

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $28.95 $26.95


   
Waltham White Alloy Mainspring JA-726
$39.00 $26.95 On Sale!

Size 6, 1889 model factory mainspring # 2217, width in mm 1.9, strength in mm 0.19, length inches 16, end T

JA-726

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-729
$39.00 $26.95 On Sale!

Size 0, 1891 model factory mainspring # 2220, width in mm 1.5, strength in mm 0.15, length inches 16, end HOLE

JA-729

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-731
$39.00 $26.95 On Sale!

Size 0 and 3/0 size 1900 model, factory mainspring # 2228, width in mm 1.7, strength in mm 0.13, length inches 15, end HOLE

JA-731

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-732
$39.00 $26.95 On Sale!

Size 0, and 3/0 size 1907 model, factory mainspring numbers 2230 and 2278, width in mm 2.05, strength in mm 0.14, length inches 15, end HOLE

JA-732

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-733
$39.00 $26.95 On Sale!

Size 0, and 3/0 size 1907 model, factory mainspring numbers 2230 and 2278, width in mm 2.05, strength in mm 0.13, length inches 15, end HOLE

JA-733

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-735
$39.00 $26.95 On Sale!

Size 6/0 Hunting case model 1898 and 6/0 1945 model factory mainspring numbers 2226 and 2276, width in mm 1.5, strength in mm 0.12, length inches 13-1/2, end HOLE

JA-735
$39.00

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-737
$39.00 $26.95 On Sale!

Size 6/0, Open Face 1912 model factory mainspring # 2235, width in mm 1.3, strength in mm 0.13, length inches 13-1/2, end HOLE

JA-737

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-738
$39.00 $26.95 On Sale!

Size 6/0 Hunting case model 1898 and 6/0 1945 model factory mainspring numbers 2226 and 2276, width in mm 1.5, strength in mm 0.12, length inches 9.5, end HOLE

JA-738

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-746
$39.00 $26.95 On Sale!

Size 7-1/4 Ligne Rectangular, factory mainspring numbers 2238 and 2274, width in mm 1.3, strength in mm 0.11, length inches 12, end D.B. & HOLE

JA-746

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-748
$39.00 $26.95 On Sale!

Size 6-1/2 L, factory # 2239/2272, width in mm 1.05, strength in mm 0.1, length inches 9.75, end HOLE

JA-748

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-756
$39.00 $24.95 On Sale!

Size 7-1/2 L, factory # 2234/2266, width in mm 1.12, strength in mm 0.1, length inches 13, end HOLE

JA-756

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $24.95 $21.00


   
Waltham White Alloy Mainspring JA-758
$39.00 $24.95 On Sale!

Size 6-3/4 L, factory # 2244/2261, width in mm 1.2, strength in mm 0.065, length inches 7.75, end HOLE

JA-758

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $24.95 $21.00


   
Waltham White Alloy Mainspring JA-759
$39.00 $26.95 On Sale!

Size 16, Running Barrel Timer 11609 factory mainspring # 2246, width in mm 1.5, strength in mm 0.165, length inches 17, end D.B.-T

JA-759

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-760

Size 6/0, factory # 2248/2265, width in mm 1.5, strength in mm 0.1, length inches 12, end D.B. & HOLE

JA-760

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $24.95 $21.00


   
Waltham White Alloy Mainspring JA-762

Size 6-3/4 & 7L-675, factory # 2249/2263, width in mm 1.15, strength in mm 0.065, length inches 7.5, end TONGUE

JA-762

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $24.95 $21.00


   
Waltham White Alloy Mainspring JA-763

Size 6-3/4 & 8L-678, factory # 2251/2262, width in mm 1.3, strength in mm 0.08, length inches 9.5, end D.B. & HOLE

JA-763

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $24.95 $21.00


   
Waltham White Alloy Mainspring JA-764

Size 8-3/4L-870, factory # 2253, width in mm 1.3, strength in mm 0.085, length inches 9, end D.B. & HOLE

JA-764

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-767

Size 22, Waltham Aircraft Clock Type A-11 Models 22809 and 22811, Travel and Desk Clock Model 22809-P. The factory number for the Pioneer Resilient mainspring is 2245 and for the Waltham Permaforce Alloy mainspring 2275. The width in mm is 5.4, strength in mm 0.22, length inches 25, end D.B.-T
For the A13A clock

JA-767

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $26.95 $24.00


   
Waltham White Alloy Mainspring JA-761

Size 6/0, factory # 2248/2265, width in mm 1.5, strength in mm 0.11, length inches 12, end D.B. & HOLE

JA-761

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Quantity   1 - 2     3+  
Price $39.00 $34.00
On Sale! $24.95 $21.00


   
Waltham Mainspring For Serial # 11,263,956
$39.00
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Quantity   1 - 2     3 - 11     12+  
Price $39.00 $37.00 $36.00

   

Movement Ligne and American Size Gauge

Gauge measures in watch lignes sizes and millimeters on one side, while the other side gives American watch movement sizes.

For measuring the diameter (0 to 60 mm) or the number of ligne sizes (2 to 24) of a movement. Length: 108 mm.

MOVEMENT-GAUGE
$3.95

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Genuine Waltham Blue Steel Mainsprings


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