Strap for Scuba Fifty Fathoms Arctic Ocean

The lug width of the Swatch Scuba Fifty Fathoms SO35N100 is 22mm. This measurement is calculated by measuring the distance between the two metal lugs (spring bar endpoints) that protrude from the case. It is essential to verify this dimension before ordering an aftermarket strap to ensure complete compatibility.

It depends on your intended use. For formal wear, we recommend alligator or vegetable-tanned calf leather, which offer elegance and durability. For actual diving or water sports, opt for rubber or NATO straps, which resist prolonged moisture. Shell cordovan represents a premium middle ground, offering aesthetic beauty with good resistance.

The process is standard: use a spring bar tool (a specific watch tool) to compress the metal pin on the case lug slightly. Once you free the first side of the spring, apply gentle traction to extract the lug from the case. Repeat on the opposite side and insert the new strap in the same manner, ensuring the pin clicks completely into the grooves.

Yes, provided the lug width is exactly 22mm. Most quality artisan straps are available in this size and fit perfectly on the SO35N100. Check the product specifications with the retailer and, if necessary, request precise measurements. Custom straps can also be commissioned from specialised ateliers.

Longevity depends on the material and maintenance. A vegetable-tanned calf, if dried after occasional water contact and subjected to periodic hydration with specific creams, can last 5–10 years. Alligator tends to age even better owing to its more robust fibrous structure. Avoid prolonged immersion with leather straps; for frequent diving use, prefer rubber or NATO.