Nivada Grenchen Antarctic Erotic Stem Winding – 320695M04

Nivada Grenchen presents the Antarctic Erotic Stem Winding – a captivating blend of heritage design and discreet mechanical artistry. Inspired by a model originally worn during U.S. Navy polar expeditions in the 1950s, this 38mm stainless steel timepiece retains its vintage proportions, alternating brushed and polished finishes, and applied indices, offering a timeless presence on the wrist. The striking salmon sunray dial adds a modern, eye-catching warmth, making it as distinctive as it is refined.

Turn the watch over and a hidden world is revealed. As the Soprod P054 hand-wound movement is engaged, a miniature mechanical penguin automaton comes to life beneath the sapphire caseback. Driven entirely by the winding motion, this intimate complication is invisible from the front—designed solely for the wearer’s enjoyment, in the tradition of discreet Swiss watchmaking artistry.

Crafted from 316L stainless steel, the case measures 12.45mm thick with a 45mm lug-to-lug span for exceptional wearability. A double-domed sapphire crystal, screw-down crown, and 100 meters of water resistance ensure durability. Swiss-made in Grenchen, this timepiece embodies innovation, history, and a subtle sense of individuality.