Technical Archive

Archimede
Klassik UA7929-A2.1-SW— lug 20mm

Archimede Klassik UA7929-A2.1-SW: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Klassik 42 TwoTone Stainless Steel / PVD / Black / Black Leather

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Archimede UA7929-A2.1-SW
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

UA7929-A2.1-SW

Movement

Miyota caliber 9015 Hours, Minutes, Seconds | Date

The Heritage

The Archimede Klassik UA7929-A2.1-SW is a 42mm stainless steel 316L watch embodying rigorous German design principles without superfluous ornamentation. It features a Miyota 9015 quartz movement with date function and a minimalist dial with white indices on dark background. The watch has a 20mm lug width and integrated screw-down crown, representing functional watchmaking where substance prevails over appearance.

FAQ

What is the lug width of the Archimede Klassik UA7929-A2.1-SW?

The Archimede Klassik UA7929-A2.1-SW features <a href="/pages/termine-glossario/misura-ansa">20mm lug width</a> (anse). This dimension is standard for the model and accommodates straps or bracelets of equal 20mm width. Always verify compatibility before purchasing by measuring the internal distance between the lug horns.

Which strap pairs best with the Archimede Klassik?

Given the austere design of this timepiece, a strap in <a href="/pages/termine-glossario/concia-vegetale">vegetable-tanned leather</a> in tobacco brown or ebony black is recommended, or alternatively an <a href="/pages/termine-glossario/alligatore">alligator leather strap</a> for formal occasions. A striped NATO strap maintains its field-watch character. The choice depends on intended use: tailored wear requires premium leather; functional use accommodates rubber or technical fabric.

How do I change the strap on my Archimede Klassik UA7929-A2.1-SW?

Strap replacement requires a spring bar tool. Place the watch on a flat surface, insert the tool's tip into the spring bar slot, gently lift until the pin exits its seat, then withdraw the strap. Reverse the procedure to install the new 20mm strap. If unfamiliar with the procedure, consult a specialist watchmaker or Atelier Casati Milano for professional installation.

Is the Archimede Klassik UA7929-A2.1-SW compatible with aftermarket 20mm straps?

Yes, the UA7929-A2.1-SW model accepts all aftermarket 20mm straps from certified manufacturers, provided they meet international standard specifications. Milano Straps curates a selection of leather, NATO, rubber and fabric straps all certified for 20mm <a href="/pages/termine-glossario/misura-ansa">lug width</a>. We recommend verifying leather thickness (for such a shallow case, 1.4–1.8mm is optimal) and whether a <a href="/pages/termine-glossario/deployante">deployant clasp</a> or bar is preferred.

What is the lifespan of a leather strap on an Archimede Klassik?

Leather strap longevity depends on daily wear, climate exposure, and maintenance. A <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> or premium vegetable-tanned leather strap, worn intermittently and treated with leather balm every six months, lasts 5–7 years on average. Budget leather typically lasts 2–3 years. Rubber and NATO straps vary (3–5 years) but resist moisture better. Milano Straps recommends rotating between straps to extend the life of each.