Moritz Grossmann ATUM Pure Skull Extreme, Unique Piece 10th Anniversary Collection

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To celebrate the tenth anniversary, the engineers, watchmakers and designers at the Moritz Grossmann Uhren manufactory have created a special collection of 24 unique pieces including the ATUM Pure Skull Extreme.

The ATUM Pure Skull is a unique piece created by the master workshop that will delight any bold watch enthusiasts with its extravagant design. The skull-shaped dial plays with a motif that has held symbolic power for centuries.

The Moritz Grossmann manufactory has designed the ATUM Pure Skull Extreme with characteristic elegance and subtle design language: the blackened stainless steel case extends to frame the outline of the skull. The handcrafted burnished skull forms the central focal point of the dial. The ATUM Pure Skull Extreme is encircled by a wide and striking chapter ring with Arabic numerals and indexes.

The hands are handmade from stainless steel and filled with brown HyCeram filling which is flat polished to match the skull. The brown calfskin strap harmonises with the face of the watch. The Pure Classic finish calibre 201.1 with its impressive mechanics is being revealed on the back of the case.

The ATUM Pure Skull Extreme is offered with the calibre 201.1 in Pure Classic finish as a single edition 1 of 1.

Technical details

Movement
Manufacture calibre 201.1, manually wound, adjusted in five positions
Diameter: 36.4 mm, height: 5.0 mm
No. of parts 187
Jewels 20
Escapement Lever escapement
Oscillator Shock-resistant Grossmann balance with 4 inertia and 2 poising screws, Nivarox
1 balance spring
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 manual winder with pusher

Operating elements
Crown for winding the watch and setting the time, pusher to start the movement

Case
Three-part, stainless steel black
Diameter: 41.0 mm, height: 11.35 mm
Crystal and display back: Sapphire crystal, antireflective coating on one side

Dial
Rhodiumed, in stainless steel
Hands: Manually crafted, hour and minute stainless steel, polished with brown; HyCeram filling, subsidiary second stainless steel, polished

Strap
Leather 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; separately removable clutch winding mechanism; stop seconds for hand setting