Archimede
Klassik UA7929-A2.6-SW— lug 20mm
Archimede Klassik UA7929-A2.6-SW: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Archimede UA7929-A2.6-SWThe essential strap measurement.
Browse 20mm straps →UA7929-A2.6-SW
Miyota caliber 9015 Hours, Minutes, Seconds | Date
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Klassik
FAQ
What is the lug width of the Archimede Klassik UA7929-A2.6-SW?
The lug width is exactly 20 millimetres. This dimension is a European standard for classical watches with medium cases (40-42mm). To verify compatibility with a new strap, measure the interior of the lug with a digital calliper—it should read 20mm without excessive tolerance.
Which strap is most suitable for this watch?
For the Archimede Klassik UA7929-A2.6-SW we recommend a bicolour alligator with fine grain in dark brown or black, or structured calf leather with vertical texture. Alternatively, a NATO in dense cotton-polyester weave is perfect for those desiring sportive versatility. FKM rubber is the pure technical choice, ideal for daily wear without aesthetic pretence.
How do I change the strap on this model?
The Archimede Klassik features straight lugs without anomalous curve. Use a spring bar tool to gently remove the lugs, inserting the tip into the lateral groove of the spring underneath the lug. Never force—the steel is robust but the spring mechanism is delicate. When replacing, ensure the new strap has a flat shoulder and 20mm interior dimension to prevent lateral slipping.
Can I use aftermarket 20mm compatible straps?
Yes, absolutely. The 20mm lug width is an open standard. Any strap with 20mm interior width is compatible, provided it is manufactured in leather, NATO or rubber from quality producers. Note: some vegetable-tanned leather straps bed in during the first days, tightening slightly—this is normal and desirable, a sign of living leather and not synthetic material.
How long does a leather strap last on this watch?
A quality artisanal strap in alligator or calf leather lasts on average 3-5 years with daily wear, depending on climate, humidity, cleaning frequency and personal perspiration. Vegetable-tanned leather ages beautifully—it develops a patina analogous to the stainless steel case. A NATO strap in cotton-polyester lasts 5-7 years. FKM rubber, if not exposed to direct heat sources, resists 7-10 years whilst maintaining elastic properties.