Moritz Grossmann ROOSTER Ten – Unique Piece in Stainless Steel, Chinese Zodiac Collection

Tenth model in the Moritz Grossmann’s collection of 12 unique pieces exclusively created for the Christie’s online auction, this one-off piece made from stainless steel, features a hand-painted dial with a miniature drawing according to the artistic design of Caroline Kortrijk.

The proud rooster wants to be radiant and stride ahead self-confidently. The deep blue and the bright orange as complementary colours give the rooster a lively and expressive look. The artist was inspired to produce the curved lines and shapes by traditional rustic style farmers’ paintings. She was introduced to these by her grandmother.

The polished stainless steel hands, handcrafted in the manufactory, harmonise with the solid silver dial.

The rooster is the tenth of the Chinese zodiac signs.
Years of birth under the sign of the rooster: 1945, 1957, 1969, 1981, 1993, 2005, 2017,
2029
Name of the artist: Caroline Kortrijk

The model was manufactured in High Artistic Finish with the calibre 100.1. The movement is visible though the generous transparent back made of sapphire crystal with an antireflective coating on one side. The pillar movement with well-proportioned components made of untreated German silver with various finishes forms different levels. On the characteristic 2/3 plate with broad horizontal ribbing, the signet is engraved by hand. The Grossmann balance is visible in the curved plate cut-out and is borne by the stepped, hand-engraved balance cock with the typical fine micrometer screw.

Technical details

Movement

Manufacture calibre 100.1, manually wound, adjusted in five positions
Diameter: 36.4 mm, height: 5.0 mm
No. of parts 198
No. of jewels 20 jewels, 3 of which in screwed gold chatons
Escapement Lever escapement
Oscillator Shock-absorbed Grossmann balance with 4 inertia and 2 poising screws, Nivarox 1 balance spring with No. 80 Breguet terminal curve, Gustav Gerstenberger geometry
Balance Diameter: 14.2 mm, frequency: 18,000 semi-oscillations per hour
Power reserve: 42 hours when fully wound

Functions
Hours and minutes, Grossmann winder with pusher

Case
Three-part, stainless steel case
Diameter: 41.0 mm, height: 11.35 mm
Crystal/display back: Sapphire crystal, antireflection-coated on one side
Operating elements: Crown in stainless steel to wind the watch and set the time, pusher in stainless steel to start the movement

Dial
Solid silver, hand-painted
Hands: Manually crafted from steel

Strap
Hand-stitched calf strap with prong buckle in stainless steel

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