Japan’s Citizen Watch Co. will mark 100 years of operation in 2018, and to commemorate the occasion the brand is releasing a unique, vintage-inspired bullhead chronograph, the Tsuno Chronograph Racer, at this week’s Baselworld watch fair. The new watch takes its design influences from a 1972 chronograph known as the Challenge Timer, and especially from its successor in the 1973 Tsuno Chrono (?horned chronograph? in Japanese) for which the modern piece is named.

The new watch comes in four color variations, two of which have a black bezel with an orange or white dial, and the other two using steel bezels with blue or white dials. The piece has a round, 45-mm case in a bull-head construction, with a crown and two chronograph pushers at its top; lugs integrating seamlessly into its bracelet; and a second crown at the 5 o?clock position to adjust the watch?s alarm function. Depending on the color of the dial, each will come equipped on a different-style strap, ranging from an Oyster-style steel bracelet, orange and black leather racing strap, red and black alligator construction, or simple brown leather.
On the dial is an inclined tachymetric scale, applied rectangular hour markers, and four black subdials for 1/5th seconds counter, 12-hour counter, power-reserve indicator, and running seconds indicator at the 3, 6, 9, and 12 o?clock positions, respectively. At the 1:30 position is a small date window, while at the 4:30 position is an on/off indicator for the al...