Myths of creation
The Ennead of Heliopolis is one of the oldest stories in ancient Egyptian mythology about the inception of the world. The nine deities are revered in Heliopolis, where the Bennu incarnated on earth as the first living being. The god Atum is the origin of the nine. Self-begotten from nothing, he represents the genesis of everything. Atum is the cosmos, matter, and the complete one; through his progeny, he is the finisher of the world. With his creative powers, Atum engendered air and moisture, the heavens and the earth, and time. The mythos of time is as fascinating as the enigmatic mythology of creation.
Thus, the god of creation inspired the second Grossmann watch family, which is now named ATUM. The manually wound ATUM immediately manifests mature technology and the ultimate in manufacturing perfection. As a modern interpretation of the historic precision instruments that originated in Moritz Grossmann’s atelier, the ATUM is delightfully sleek and impressively substantial.
It, too, embodies all the hallmarks and underlying values of a classically crafted timepiece signed MORITZ GROSSMANN GLASHÜTTE I/SA. The signature is hand-engraved into the characteristic 2/3 plate with the wide horizontal ribbing. The circular cutout of the plate reveals the new Grossmann balance for the first time. It is carried by the cantilevered, hand-engraved balance cock with the typical micrometer screw. Further brand-typical accents in the movement include the ratchet wheel with 3-band snailing, raised gold chatons, and sparkling white sapphire jewels.
Case: 750/000 rose gold
Hands: Hand-crafted, steel, annealed to a brown hue
Movement: Manufacture calibre 100.1, manually wound, adjusted in five positions
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, 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, subsidiary seconds with stop seconds, Grossmann winder with pusher
Special features: Grossmann balance; lateral pusher for disabling the handsetting mode and starting the movement; space saving and 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 handsetting
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
Case: Three-part, precious metal
Dial: Solid silver, hour markers in solid silver
Hands: Hand-crafted, steel or stainless steel
Crystal/display back: Sapphire crystal, antireflection-coated on one side
Strap: Hand-stitched alligator strap with pin buckle in rose gold (optional folding clasp in rose gold)