The Swatch Watch BLUE MATIC SAN100 First Edition Automatic 1991 is a vintage timepiece with a unique translucent blue case color design. This unisex watch features a two-piece strap, solid caseback, and a Swiss-made mechanical automatic movement with 23 jewels for precision. With a water resistance rating of 30 meters (3 ATM), this casual style watch is suitable for adults and is a collector's item from the iconic Swatch brand. Made of plastic, this round watch is a classic piece of jewelry and a must-have for watch enthusiasts.  This watch is fully functional and comes in a plastic Swatch case.  The watch does not include the original paperwork, and it does not come with the plastic Swatch sign which is shown for scale.