Riffing on their original 1986 design, BOTTA has pushed the one-handed concept even further with the UNO 24. Not only is it single-handed, it’s a 24-hour watch, meaning that the hand makes one revolution per day. Reflecting the motion of the sun, the single-hand points straight up at 12/noon, when the sun is at its highest point, and straight down at midnight. The result is a watch that tells time in two ways. One, where the time is literally read via the hand, and another where time is as the passing of the day.

Though poetic in its methods, the UNO 24 is exacting in its design. The dial features a chapter ring with clean markers printed per hour, half-hour, and ten-minute intervals, in descending order of length. Thus, time is typically read to the nearest five minutes. The dial is split in half, with the upper in light gray, and the lower half in dark, suggesting night and day. And the cardinal points are highlighted in orange or green, emphasizing the passing of a quarter day. Additionally, a date is included at the midnight position.

The full titanium case continues the precision theme with a beautifully angular design that gently hugs the wrist. Though 40mm in diameter, the lugs manage to actually come in at 39mm, tucking under the watch. Clean and lightweight, at 7.7mm thick it’s easy to wear all day and under layers. Inside is the Swiss-made RONDA 515.24H keeping time accurately.