I have for sale a brand new clasp spring which fits a variety of Omega Seamaster Bracelet Clasps, namely the following:

1502, 1503, 1504, 1579, 1580, 1581, 1582, 1583, 1584, 1588, 1610, 1611, 1612, 1613, 1614 and 1615

If your spring has broken and your clasp will not stay safely shut then this spring will allow you to easily repair your clasp. 

This spring is a generic version of the Omega 085ST0055 spring which is now very hard to source and quite expensive to purchase when you do find one. 

Please feel free to ask any questions.