1. 
   keyless watch
   Watch which is wound by means of an attached key, a ribbed knob or button, rather than by a separate key. The keyless, or button-wound watch was first patented 1820 and much modified and improved during the 19thC, but not generally adopted in Britain until after 1880.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   keyless-watch
   Watch which is wound by means of an attached key, a ribbed knob or button, rather than by a separate key. The keyless, or button-wound watch was first patented 1820 and much modified and improved during the 19thC, but not generally adopted in Britain until after 1880 .
   Found op http://www.antique-marks.com/antique-terms-k.html
   
   

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