Rare Vintage 1950s Wyler Incaflex Gold-Filled Manual Wind Men's Watch – Patented "Serpentine" Balance, Cal. WG24, Wyler Incaflex watches are highly regarded by collectors for their historical significance in shock protection. The brand famously demonstrated this technology in 1956 by dropping watches from the Eiffel Tower to prove they would still function after the impact. Product Specifications & Details: Brand: Wyler Era: 1950s Vintage Movement: Caliber WG24 Manual Winding Special Feature: Patented Incaflex "Serpentine" Balance Wheel. This unique design uses two curved, flexible arms to provide superior shock resistance, a famous innovation by Paul Wyler. Case Material: Gold-Filled Case Diameter: 35mm (excluding crown) Dial: Original, non-refurbished/non-repainted dial Crystal: Acrylic / Plastic crystal Condition:Watch head is all original Comes with an aftermarket strap