Strap for Club Datum

The Club 731 is equipped with a 20 mm lug width. This distance between the lugs derives from the harmonic proportion between the case diameter (38.5 mm) and overall height. To verify compatibility with an aftermarket strap, simply measure the space between the two lugs, or contact customer service with the model reference.

There is no single 'best' choice, only informed decisions according to use case: alligator leather with vegetable tanning dialogues naturally with Saxonian minimalism and develops fascinating patina; calf leather amplifies modernity without betraying craftsmanship; grey anthracite NATO emphasises case nudity; FKM rubber becomes intelligent for aquatic or high-friction urban environments.

The Club 731's lugs are fitted with removable spring bars. Use a spring bar tool to gently depress the small spring and eject the pin outward. Once extracted, the old strap slides free. Thread the new strap by aligning its holes to the pins, then guide the pin inward until the spring reasserts contact. A simple operation requiring no watchmaking skill.

Yes, provided the lug width is 20 mm. Milano Straps offers a complete selection of artisanal straps in this width, in leather, NATO, and rubber. All models are verified for mechanical compatibility with standard Nomos cases. Customisation available online.

A quality leather strap, subjected to vegetable tanning, typically endures 2–4 years under intensive daily use. Longevity depends on wear frequency, ambient humidity, material care, and body perspiration. A strap worn 3–5 days weekly can extend beyond 5 years. Milano Straps recommends frequent rotation with strap alternation to extend overall longevity.