Certina
DS Action C013.407.44.081.00— lug 22mm

The lug width is 22mm. This measurement is standard for DS Action models in the 43mm case version and ensures balanced proportions between the titanium case volume and the strap width. To verify the measurement, measure the width of the metal spring bar where the strap inserts into the lugs: it will be exactly 22mm.

The ideal strap depends on intended use: for sporty aesthetics, vegetable-tanned alligator or calf leather emphasise the solid construction; for aquatic or extreme environments, FKM rubber offers resistance and grip; for casual-to-business versatility, ballistic nylon NATO adds quick-change practicality. The titanium case tolerates colour combinations that other watches cannot support.

Strap changes are straightforward and require no specialised tools if the strap has sliding lugs. If it has fixed lugs, you'll need a spring bar tool to lift the metal pin from its seat. Proceed gently: grip one end of the pin with the tool, loosen slightly, slide the old strap away, and insert the new one, ensuring the pin fully re-enters its seat with an audible click.

Yes. Any strap with a 22mm lug width is compatible. Online retailers and specialist ateliers offer options in natural leather, rubber, canvas, and even designed models with deployante clasps. Ensure the strap's total length fits your wrist: the lower portion must extend at least 1-2cm beyond your tightest adjustment hole.

A quality vegetable-tanned leather strap lasts 3-5 years with moderate daily wear. Durability depends on UV exposure, humidity, and frequency of use. FKM rubber is more durable (5-8 years), whilst ballistic canvas NATO endures beyond 10 years. Leather develops natural patina and changes colour over time, transforming into an increasingly personal extension of the watch.