Mainsprings for American Watches

Elgin
Size
Part Number
Material
Price
37s 4457 Alloy $25.00
37s 4457 Steel $10.00
22s 4935

Steel

Out of Stock
18s 1956 Steel $10.00
18s 6085 Alloy Out of Stock
18s 812 Steel Out of Stock
18s 812 Alloy $20.00
16s 6164 Alloy $20.00
16s 2542 Alloy Out of Stock
16s 6080 Alloy $20.00
16s 817 Alloy $20.00
16s 817 Steel $10.00
12s 1712 Steel Out of stock
12s 1720 Steel $10.00
12s 1720 Alloy Out of stock
12s 2339 Steel $10.00
12s 2339/6093 Alloy $20.00
12s 2874 Alloy $20.00
12s 2874 Steel $10.00
10s 5726 Steel $10.00
10s 6001 Alloy $20.00
6s 824 Steel $10.00
6s 824 Alloy $20.00
0s 825 Alloy Out of Stock
0s 825 Steel $10.00
0s 1713 Steel $10.00
0s - 3/0s 2097 Alloy $20.00
0s - 3/0s 2097 Steel $10.00
0s - 3/0s 6095 Alloy $20.00
4/0s 6096 Alloy $20.00
4/0s 4789 Steel $10.00
5/0s 2705 Steel $10.00
6/0s 2890 Steel $10.00
6/0s 6098 Alloy Out of Stock
10/0s - 16/0s - 18/0s 1957 Steel $10.00
10/0s - 16/0s - 18/0s 6099 Alloy $20.00
8/0s 6002 Alloy $20.00
8/0s 5219 Steel $10.00
15/0s 5550 Steel $10.00
15/0s 6003 Alloy $20.00
20/0s 5015 Steel $10.00
20/0s 6100 Alloy $10.00
21/0s 6246 Alloy $20.00
21/0s 6004 Alloy $20.00
21/0s 5327 Steel $10.00
21/0s 6005 Alloy $20.00
26/0s 5131 Steel $10.00
26/0s 6101 Alloy $20.00
Series 660 6330 Alloy $20.00
Grade 607 Automatic 6329 Alloy $10.00
FF 120 123 6702 Alloy $10.00
AS 1194 6703 Alloy $20.00
ETA 6704 Alloy $20.00
FF 60, AS 1173 6705 Alloy $20.00
? 6710 Alloy $20.00
Hamilton
Size
Part Number
Material
Price
18s 14 Steel Out of Stock
18s 15 Alloy $20.00
18s 15 Steel $10.00
18s 232 Steel Out of Stock
18s 232 Alloy Out of Stock
16s 317 Steel $10.00
16s 317 Alloy $20.00
16s 318 Steel $12.00
16s 318 Alloy $20.00
16s 534 Steel $10.00
16s 534 Alloy $20.00
16s 534B Steel $10.00
16s 534B Alloy $20.00
12s 1228 or 3028 Alloy $20.00
12s 1228 or 3028 Steel $10.00
10s 6021 Steel $10.00
10s 20432/717100 Dynavar $20.00
10s 20433/717101 Dynavar $20.00
10s 717102 Dynavar Out of Stock
6/0s 1721 or 1921 Steel $10.00
6/0s 2321 Alloy Out of Stock
6/0s 2321 Steel $10.00
6/0s 2521 Steel $10.00
6/0s 2621 Alloy $20.00
6/0s 2621 Steel $10.00
6/0s 717201 Dynavar Out of Stock
6/0s 717202 Dynavar Out of Stock
8/0s 7221 Alloy $20.00
8/0s 7221 Steel $10.00
8/0s 717271 Dynavar $10.00
8/0s 717272 Dynavar $10.00
12/0s 4128 Steel $10.00
12/0s 4128 Alloy $20.00
12/0s 717270 Dynavar $10.00
14/0s 5021 Steel $10.00
14/0s 717441 Dynavar $10.00
18/0s 2721 Steel $20.00
18/0s 2721 Steel $10.00
20/0s, 21/0s 2921 Steel $10.00
20/0s, 21/0s 2921 Alloy $20.00
20/0s, 21/0s 7421 Steel $10.00
20/0s, 21/0s 717570 Dynavar $10.00
20/0s, 21/0s 717571 Dynavar $10.00
22/0s 6221 Steel $8.00
22/0s 717601 Dynavar $10.00
Hampden
Size
Part Number
Material
Price
18s 1696 Alloy $20.00
16s 2696 Alloy $20.00
16s 3696 Alloy $20.00
16s 4697 Steel Out of Stock
16s 4697 Alloy $20.00
16s 5697 Alloy $20.00
12s 6696 Alloy $20.00
12s 6696 Steel $10.00
12s 12696 Alloy $20.00
6s 8696 Alloy $20.00
3/0s 9696 Alloy $20.00
8/0s 15696 Alloy $20.00
11/0s 11696 Steel $8.00
Howard
Size
Part Number
Material
Price
18s 55 Alloy $20.00
16s 328 Alloy $20.00
16s 329 Alloy $20.00
16s 528 Steel Out of stock
12s 552 Alloy $20.00
12s 552 Alloy $20.00
12s 553 Alloy $20.00
12s 553 Steel $10.00
10s 796 Steel $10.00
Illinois
Size
Part Number
Material
Price
18s 47301 Steel Out of stock
18s 47302,47303 Steel $10.00
18s 47302 Alloy $20.00
18s 47303 Alloy $20.00
16s 47309 Alloy $20.00
16s 47309 Steel $10.00
16s 47313 Steel $10.00
16s 47314 Steel $10.00
16s 47315 Alloy $20.00
16s 47315 Steel $10.00
16s 47316 Steel $10.00
16s 47317 Alloy Out of stock
16s 47317 Steel $10.00
16s 47321 Alloy $20.00
16s 47322 Steel Out of stock
16s 47326 Steel $10.00
16s 47327 Steel $10.00
16s 47330 Steel $10.00
16s 47331 Alloy $20.00
16s 47331 Steel $10.00
16s 47333 Steel Out of stock
14/16s 47334 Steel Out of stock
14/16s 47334 Alloy $20.00
12/13s 47336 Steel $10.00
12/13s 47337 Steel $10.00
12/13s 47338 Steel $10.00
12s 47343 Alloy $20.00
12s 47344 Steel Out of stock
12s 47349 Steel $10.00
12s 47350 Steel $10.00
6s - 4s 47353 Steel $10.00
0s - 3/0s 47357 Steel $8.00
0s - 3/0s 47358 Alloy $20.00
0s - 3/0s 47358 Steel $8.00
0s - 3/0s 47359 Steel $8.00
6/0s OF 47363 Steel $8.00
6/0s OF 47364 Alloy $20.00
6/0s OF 47364 Steel $8.00
6/0s OF 47365 Steel $8.00
6/0s Htg. 47370 Steel $8.00
6/0s Htg. 47371 Alloy $20.00
6/0s Htg. 47371 Steel $8.00
12/0s 47376 Steel $8.00
18/0s 47380 Steel $8.00
18/0s 47383 Steel $8.00
18/0s 47384 Alloy $20.00
18/0s 47384 Steel $8.00
18/0s 47385 Steel $8.00
21/0s 47387 Steel $8.00
21/0s 47388 Steel $8.00
21/0s 47389 Steel $8.00
Ingersoll
Size
Part Number
Material
Price
16s Ingersoll Trenton 365 Steel Out of stock
16s Reliance 2365 Steel Out of stock
12s Waterbury 316 Steel $10.00
6/0s Alden 1939 Steel $8.00
New York Standard
Size
Part Number
Material
Price
18s 2190 Alloy $20.00
16s 752 Steel $10.00
16s 3196 Alloy $20.00
12s 4284 Alloy $20.00
12s 4144 Alloy $20.00
12s 8284 Alloy $20.00
10s 7080 Alloy $20.00
6s 5134 Steel Out of stock
3/0s 2041 Steel $8.00
Rockford
Size
Part Number
Material
Price
18s 450 Steel $10.00
18s 450 Alloy $20.00
16s 822 Alloy Out of Stock
12s 932 Alloy $20.00
12s 932 Steel $10.00
0s 1077 Alloy $20.00
Seth Thomas
Size
Part Number
Material
Price
18s 536 Steel Out of Stock
18s 536 Alloy $20.00
18s 729 Alloy $20.00
18s 828 Steel Out of Stock
South Bend
Size
Part Number
Material
Price
18s 19528 Alloy $20.00
18s 19528 Steel $10.00
16s 17528 Alloy $20.00
16s 27528 Alloy $20.00
16s 27528 Steel $10.00
12s 55528 Alloy $20.00
Waltham
Size
Part Number
Material
Price
8-Day 2232 Alloy $25.00
8-Day 2232 Steel $10.00
22s 2245 Alloy $20.00
18s 2202 Alloy Out of stock
18s 2203 Alloy $20.00
18s 2203 Steel $10.00
18s 2204 Alloy Out of stock
18s 2204 Steel Out of stock
18s 2205 Alloy Out of stock
18s 2205 Steel Out of stock
18s 2222 Alloy Out of stock
18s 2222 Steel $10.00
16s 2208 Steel $10.00
16s 2218 Alloy $20.00
16s 2218 Steel Out of stock
16s 2227 Steel Out of stock
16s 2227 Alloy $20.00
16s 2247 Alloy $20.00
16s 2247 Steel $10.00
16A 2268 Alloy $20.00
14s 2211 Steel Out of Stock
12s 2224 (Hook end) Steel $10.00
12s 2224A (Hole end) Steel $10.00
12s 2224A (Hole end) Alloy $20.00
12s Colonial A 2234 Steel $10.00
12s Colonial B 2237 Alloy $20.00
12s Colonial B 2237 Steel $10.00
Colonial C R.B. 2252 Steel $10.00
10s 2214 Steel $10.00
8s - 6s 2215 Alloy $20.00
6s 2217 Steel $10.00
6s 2219 Alloy $20.00
6s 2219 Steel Out of Stock
0s - 1s 2216 Alloy $20.00
0s 2220 Steel $10.00
0s 2220 Alloy $20.00
0s, 3/0s 2228 Alloy $20.00
0s, 3/0s 2228 Steel $10.00
0s, 3/0s 2230 Steel $10.00
0s, 3/0s 2230 Alloy $20.00
00s 2221 Steel $10.00
6/0s, Jewel Series 2226 Steel $10.00
6/0 C 2248 Alloy $20.00
6/0 C 2248 Steel $10.00
6/0 D 2265 Alloy $20.00
6/0 2276 Steel $10.00
Jewel Series O.F. 2235 Alloy $20.00
Jewel Series O.F. 2235 Steel $10.00
10 Ligne 2229 Steel $10.00
9 Ligne 2233 Steel $10.00
8 3/4 Ligne 2242 Steel $10.00
870 R. B. 2253 Steel $10.00
7 1/2 Ligne 2236 Steel $10.00
7 1/4 Ligne 2238 Steel $10.00
6 1/2 Ligne 2239 Steel $10.00
4 1/2 Ligne 2241 Steel $10.00
4 Ligne 2240 Alloy $20.00
4 Ligne 2240 Steel $10.00
The '750' 2243 Steel $10.00
750 Model 2250 Steel $10.00
670 Series 2244 Steel $10.00
675 Model 2249 Steel $10.00
675 Model 2263 Alloy $20.00
678 Model 2251 Steel $10.00

Dennison to Metric Conversion for Width and Strength