VERIFY YOUR WATCH MODEL & MEASURE THE CORRECT SIZE USING A RULER Watch Parts Are Model and Size Specific. Please Verify Compatibility Before Purchasing. VERIFY YOUR WATCH MODEL & MEASURE THE CORRECT SIZE USING A RULER Watch Parts Are Model and Size Specific. Please Verify Compatibility Before Purchasing. Heavy Duty Design: Crafted from Quality 316L stainless steel, this clasp offers durability and a premium feel. Its heavy-duty construction ensures long-lasting use and a secure fit on your watch strap. Enhanced Comfort: The extreme convex shape of the clasp provides a closer fit to the wrist without damaging the strap. Ideal for both leather and PU rubber straps, offering a comfortable and snug wearing experience. Versatile Fit: Designed to work with 16mm, 18mm, and 20mm strap widths. Perfect for upgrading or replacing the clasp on your Omega Seamaster Planet Ocean with a robust and reliable option. No Logo or Markings: This clasp is free of any logos or markings, maintaining a clean and classic appearance. A discreet choice for those who prefer a minimalist look on their timepiece. This listing describes a double push-button deployment buckle clasp designed to fit 18mm watch straps on Omega Seamaster or Speedmaster models. It features a heavy-duty black PVD finish and serves as an aftermarket replacement suitable for straps that require an 18mm buckle. The buckle is made from 316L stainless steel. Its convex shape provides a secure fit and helps prevent strap damage. It supports strap thickness up to 3.5 mm and accommodates lug widths of 18, 20, or 22 mm. The buckle width is 18 mm. Length: Size: Lug Width: 18, 20, 22 mm Buckle width: 18 mm Compatible With: Omega Seamaster Omega Speedmaster Speedmaster Moon Seamaster Planet Ocean Package Includes: One double push-button deployment clasp in a black finish. Spring bars for installation. Please Verify Your Watch Model And Size To Ensure Compatibility. All Parts Are Model And Size Specific.