SWATCH WATCHES Mod. YIS431

The Swatch YIS431 is known as the "Sistem Boreal" model.

Key Specifications:

• Collection: Sistem51 Irony

• Case: Stainless steel, 42mm diameter

• Movement: Automatic (self-winding) mechanical movement

• Dial: Blue sunray finish

• Strap: Stainless steel bracelet

• Crystal: Mineral glass

• Water Resistance: 3 bar (30m)

• Features:

  • Date window at 3 o'clock

  • Transparent case back showing the movement

  • Swiss made

  • 90-hour power reserve

This is part of Swatch's Sistem51 Irony collection, featuring an innovative automatic movement with only 51 parts. The Sistem Boreal combines classic styling with modern Swiss watchmaking technology in a metallic finish.