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  1. The Patek Philippe Forum
    Hi, First time posting...someone i know has this watch that I would like to purchase but both of us have no idea what it's worth. He says someone told him it was from the 50's. As you can see all it says is Tachymeter, and it's two watches in one (the top and bottom of the actual watch are 2...
  2. The General Discussion Forum
    Hi there everyone, Being my first post, and thread on Watch Talk I thought it would be fitting to ask for info on the following topic. Who was the 'first' to achieve various feats in watchmaking (ie first company to use certain case materials, chornographs, GMT, tachymeter, self winding wrist...
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