Technical Archive

Swatch
Sistem 51 SUTN402— lug 20mm

Cinturini 20mm per Swatch Sistem 51 SUTN402. Cuoio artigianale, NATO, gomma. Acquista online da Milano Straps.

Sistem Aqua — orologio

Artisanal Note

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

Technical Specifications

Swatch SUTN402
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

SUTN402

Movement

Swatch caliber Sistem51 Date

The Heritage

The Sistem51 was introduced by Swatch in 2013 as the first fully machine-assembled automatic mechanical movement. It houses the Sistem51 caliber with 51 components, a single screw and date indication. The SUTN402 model features a case with a crown at 4 o'clock and an integrated bracelet.

Compatible Straps

Selected for 20mm lug width