Strap for DS Action Diver Chronograph

The lug width of the Certina DS Action C013.427.11.051.00 is precisely 20mm. This measurement represents the internal distance between the two metal lugs where the strap is installed. To verify correctly, use a digital calliper positioned perpendicularly between the lugs from the inside of the case. The acceptable tolerance is ±0.5mm to ensure an optimal fit without lateral movement or excessive tension.

For the C013.427.11.051.00, the ideal strap depends on intended use: vegetable-tanned alligator in dark brown emphasises sporty character whilst maintaining elegance, shell cordovan offers near-metallic solidity and noble ageing, structured calf balances softness and functionality, whilst black NATO preserves tactical authenticity. Structured rubber represents the contemporary choice for humid environments. All must be 20mm lug width for compatibility.

To change the strap on the C013.427.11.051.00, you will need a precision pin pusher. Position the pusher on the spring pin from the top of the case and gently push downwards to eject the pin from the lower lug. Repeat on the opposite side. The new 20mm strap is installed by inserting the pin from above, sliding it through the leather or rubber passant, and seating it in the lower lug until you feel a tactile click confirming correct positioning.

Yes, any aftermarket strap with a 20mm lug width is compatible with the C013.427.11.051.00, provided the internal passants slide without friction on the pins. Leather straps (alligator, calf, shell cordovan), NATO and rubber are all valid options. It is essential to verify that the passants maintain the same internal width to prevent lateral movement that would compromise both the aesthetics and functionality of the watch.

The durability of a leather strap on the C013.427.11.051.00 varies depending on material and usage. Vegetable-tanned alligator lasts 3-5 years whilst developing aesthetic patina, shell cordovan easily exceeds 5 years maintaining structural integrity, structured calf lasts 2-4 years before developing visible microcracking from repeated compression. Rubber offers 5-7 years of durability. Annual conditioning maintenance significantly extends the lifespan of all organic materials.