New 14k Solid Gold Band/Strap Watch Buckle Size: 18mm Fits: Rolex, Omega, IWC,  Zenith, Longines, Breitling, Jaeger-LeCoultre, Audemars Piguet, Vacheron Constantin and etc. Match this width to the end of the strap that accepts the buckle. This may differ from the width of the strap between the lugs. Straps commonly taper, so if your strap is 20mm between the lugs it may taper to 18mm at the buckle. Check to make sure you have the right measurement. Price for 1 piece.

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