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Swatch Watch Sistem 51 - Boreal Again

YIS401GC

With its maritime compass-inspired design and bottomless sun-brushed blue dial, the SISTEM BOREAL (YIS401GC) is the trans-oceanic partner you've been looking for. A polished stainless steel case houses the groundbreaking SISTEM51 automatic watch design, while the openwork caseback reveals the inner workings of the self-winding mechanical movement. Mounted to a sturdy polished stainless steel bracelet, you just found a captain you can trust for many years on the open seas.

WATCH CASE SIZE (MM)
  • Watch size: 42.00
  • Thickness 13.80
  • Height 50.60
  • MOVEMENT: Automatic
  • WATER RESISTANT: 3 Bar
  • STRAP MATERIAL: St. Steel Adjustable
  • CLASP MATERIAL: Stainless Steel
  • STRAP BUCKLE: Butterfly
  • CASE MATERIAL: St. Steel
  • COLLECTION CATEGORY: Core
  • PACKAGING TYPE: Standard
  • COLOUR: Blue
  • STRAP COLOUR: Grey
  • DIAL COLOUR: Blue
  • CASE COLOUR: Grey
  • CASE SHAPE: Round

What is an Automatic Watch?

An automatic watch harnesses the movement of the wearer's arm to power its mechanism. As the arm moves, a rotor inside the watch rotates, winding the mainspring. This stored energy is then released, driving the gears that keep the watch's hands moving and accurate timekeeping.

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