The listing is for one NOS mainspring only, your choice. The numbered C. & E. Marshall Co./ Marco envelopes are not included as I have more mainsprings and will reusing them. Free shipping within USA, International shipping is only through the eBay Global shipping, please estimate this before making a purchase. After years of storage there maybe some corrosion so mainspring may need extra cleaning to use.
If you don't know what mainspring you need please message me with your model and I will look to see if my old reference materials can tell us.
Look at the pictures for more information and condition about each mainspring. I have much more than watch material that I will be listing as time allows.
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