Vintage watch mechanisms I have turned into intriguing tie slides.

If you're a fan of industrial or steampunk design these will suit you nicely.

This is a rare style with the winder still in place.
Their faces measure 20mm wide. The tie slide itself is stainless steel.

 

If you like you can add a smart gift box for £3 (the size of the box takes it up to the higher Royal Mail postage bracket which is why I have to charge the £3 extra).