Casker has evidently bought out the Swiss inventory of White Steel Pocket Watch Mainsprings and has a "fire sale" for $14.95 each 3 for $12.95 each!

I can only say this is a chance to Get them while you can! The "internet" list is not yet ready, but if you go to Casker (http://www.casker.com/) and enter the part numbers below, you will find what they have that you can use. It takes longer, but what can I say.