Up for auction is a beautiful and faithful reissue of the legendary Nivada Grenchen Antarctic 35mm. This modern timepiece pays direct tribute to the historic 1954 model, famous for being worn by the U.S. Navy during the grueling "Operation Deep Freeze" polar expedition in 1955-1956.True to the original, this version features a classic 35mm diameter, perfectly capturing the vintage elegance of the 1950s while offering modern reliability. Brand: Nivada Grenchen Model: Antarctic 35mm Movement: Swiss Automatic (Landeron / Soprod) Case Material: Stainless Steel Case Diameter: 35 mm (excluding crown) Thickness: 10.1 mm (very slim and elegant profile) Crystal: High-domed sapphire crystal (box shape, mimicking historical plexiglass) Water Resistance: 50 meters (5 ATM) Dial: Vintage-inspired dial with applied indices and historic Nivada Grenchen logo.