RAT One is all about the year 2020, because this is the year of the rat in Chinese astrology. As a highlight piece of the Zodiac collection, this one-off piece is furnished with a rose gold casing and celebrates the rat, which is the first sign of the Chinese zodiac.

Intelligent, beautiful and faithful – the artist sees these qualities in the rat. Thanks to her personal love of rats, the choice of motif was not too difficult. She herself used to keep a rat as a pet and learned to love these qualities. By arranging several rats in a circle, the artist symbolises the good social behaviour of the animals and expresses their beauty through the flowers.

The Calibre 100.1

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Manufacture calibre 100.1, manually wound, adjusted in five positions

Special features

Grossmann balance; hand setting override and start of movement with lateral pusher; space-saving modified Glashütte stopwork with backlash; adjustment with Grossmann micrometer screw on a cantilevered balance cock; Pillar movement with 2/3 plate and frame pillars in untreated German silver; 2/3 plate, balance cock, and escape-wheel cock engraved by hand; broad horizontal Glashütte ribbing; 3-band snailing on the ratchet wheel; raised gold chatons with pan-head screws; separately removable clutch winder; stop seconds for hand setting


Hours and minutes, Grossmann winder with pusher

No. of parts



20 jewels, 3 of which in screwed gold chatons


Lever escapement


Diameter 14.2 mm, frequency 18,000 semi-oscillations per hour

Power reserve

42 hours when fully wound

Operating elements

Crown in 750/000 gold to wind the watch and set the time, pusher in 750/000 gold to start the movement

Case dimensions

Diameter: 41.0 mm, height: 11.35 mm

Movement dimensions

Diameter: 36.4 mm, height: 5.0 mm


Solid silver, hand-painted


Manually crafted from steel, annealed to a brown-violet hue

Crystal/display back

Sapphire crystal, antireflection-coated on one side


Hand-stitched calf strap with prong buckle in precious metal



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