Archimede
Klassik UA4929-A3.41-G5— lug 18mm

The lug width of the Archimede Klassik UA4929-A3.41-G5 is precisely 18 millimetres. This measurement is standard across all Klassik family specimens and ensures compatibility with the vast majority of artisanal straps on the market. To verify this measurement on your timepiece, measure the distance between the two attachment points located on the case edge: you should obtain exactly 18mm in width.

The best strap depends upon context of use and personal sensibility. For formal wear, we recommend an alligator or vegetable-tanned calf in dark brown or black, which emphasizes the minimalist elegance of the 36mm case. For daily use, a cotton or linen NATO strap offers practicality and resilience without aesthetic compromise. For more demanding activities, technical elastomer or rubber guarantees reduced maintenance and extreme durability. All these materials are available in 18mm width and compatible with your UA4929-A3.41-G5.

Strap replacement on the Klassik is a rapid operation requiring no specialist tools. Locate the two metal lugs on either side of the case, positioned between the strap and case body. Insert a thin, flat tool (such as a bracelet remover or small blade) into one of the small lateral holes in the lug; apply light outward pressure: the internal spring releases and the lug slides away. Repeat on the opposite side. Insert the new 18mm strap into the slots: the lugs will click securely into place when fully inserted. The process requires less than two minutes.

Any strap with an 18-millimetre lug width is technically compatible with the Klassik UA4929-A3.41-G5. This includes leather straps (alligator, calf, horse, ostrich), woven straps (NATO, canvas, linen), elastomeric straps (rubber, silicone, polyurethane) and hybrid straps. Superior aesthetic results are obtained with premium vegetable-tanned leathers or quality woven materials, which reflect the minimalist construction philosophy of your timepiece. Always verify that the strap is equipped with 18mm lugs or is manufactured in lug-less format.

Leather strap durability depends upon material quality, frequency of wear and environmental conditions. A well-executed vegetable-tanned calf, worn daily, has an average lifespan of 3-5 years before restoration or replacement becomes necessary. High-grade alligator may last 5-8 years. Water, perspiration and humidity accelerate leather ageing. With proper maintenance—avoiding prolonged immersion, keeping the strap dry, occasionally applying leather-specific conditioner—it is possible to significantly extend useful life. NATO fabric straps have potentially unlimited lifespan under normal conditions.