The Gravity and Mercury have taken Ziiiro’s lofty goal of stylish utilitarianism from concept to reality. The watches function without any of the markings of standard analog timepieces, instead using a continuously rotating combination of two rings to make temporal distinctions. The tip of the inner ring represents the hour, while the tip of the outer ring denotes minutes, and a fading gradient tracks the passage of time.
Ziiiro doesn’t let form override function, but it doesn’t skimp on aesthetics, either: Mercury, which touts a stainless steel band, comes in four different color schemes, while Gravity boasts a patent pending bracelet strap (a silicone-metal combo), available in six colors. Both watches also feature pop-out faces, allowing for a variety of Swatch watch-style face-band pairings. However, while they’re both readable and fashionable, these low frills watches don’t come cheap: prices range from €100 to €143, or about $130 to $175.