Wyler Incaflex Rectangular vintage wristwatch hand-wind Wristwatch

Vintage Wyler Incaflex wristwatch with a rectangular case. watch band stretches over your wrist without a buckle. Features shock-resistant technology, Incaflex, a line known for its durability and patented shock-absorbing balance spring. Case Style: Features a rectangular or "tank" style case, often with beveled edges. Movement: Typically houses a Swiss mechanical hand-wind movement, often with 17 jewels. Incaflex Technology: The Incaflex balance spring, invented by Paul Wyler in 1927, was a revolutionary system designed to protect the balance wheel from lateral impacts, enhancing the watch's shock resistance.