Moritz Grossmann presents the ATUM ‘Backpage’
– a showcase for the art of Grossmann watchmaking
Schönstes deutsches Handwerk
The renowned German watchmaker Moritz Grossmann celebrates its tenth anniversary in November. To mark this special occasion the independent watchmaker from Glashütte is pleased to reveal its eleventh special model, the ATUM Backpage Platinum. This platinum single edition piece offers a showcase for Grossmann’s beautiful watchmaking art.
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With the exception of the delicate minute scale on the rim of the watch face the dial is completely exposed enabling spectators to admire all the beautifully intricate details of the movement.
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The ATUM Backpage Platinum‘s artistically handcrafted movement has been mirrored and shifted to the dial side by Moritz Grossmann’s master watchmakers. Thanks to an unexpectedly large dial cut-out, the characteristic movement details such as Grossmann’s balance wheel, a hand-engraved balance cock and three band snailings on the ratchet wheel can be fully observed while on the wrist. Wide Glashütte stripes are applied to both sides of the movement and the Moritz Grossmann logo is hand engraved on the dial side. Blue hands and blue screws, tempered in the manufactory, complete the elegant colour scheme of this extraordinary watch.
Calibre 107.0
Calibre 107.0 is essentially a mirror image of the calibre 100.1, but with crucial new design elements. An additional wheel between the crown wheel and the ratchet wheel reverses the entire drive train with respect to the rotation of the mainspring barrel. The wheel train runs in the right direction thanks to the mirrored escapement and the mirrored oscillation system – also including the balance spring coiling direction.
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The larger dimensions of the 2/3 plate necessitated design changes for the balance cock and the escape-wheel cock. The cantilevered geometry of the escape-wheel cock creates a balanced accent in the overall arrangement of the movement. The High-Artistic finish showcases attractive hand engravings, bevels, and chamfers.
The minute-wheel bridge
To achieve the desired presence of the winding wheels on the dial side, the dial train was reconfigured. The artistically finished train wheels were arranged beneath a lavishly polished minute-wheel bridge. Since in this case, the hand-setting mechanism is located on the opposite side of the movement, the setting wheel extends all the way through the calibre.
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The new arrangement created space for the optimised barrel bearing and the ratchet wheel, which was also shifted to the front side.
The winder with pusher and stop seconds
On the new rear side of the movement, the winding and hand-setting mechanism is now openly integrated in the train bridge, so its functionality can be fully observed for the first time. The stop-seconds and stop-balance functions have been redesigned as well.
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In the hand-setting mechanism, the brake position is sampled at the clutch lever and, via a push rod, transferred to the brake spring, which then stops the balance.
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After the pusher is activated and the movement starts, the brake spring returns the push rod to its rest position.
On the back of the movement, the winding and hand-setting mechanisms are openly integrated into the train bridge and can be observed in their full functionality. Almost all parts in the movement are mirrored in order to guarantee their function even when mounted in the opposite position.
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The Moritz Grossmann brand manufactures timepieces to the highest standard of craftsmanship under the motto ‘Schönstes deutsches Handwerk’ - The most beautiful German craftsmanship. The ATUM Backpage Platinum is offered with the calibre 107.0 in artistic hand finish as a single edition 1 of 1.
There are only 5 days left to place an online bid on Moritz Grossmann’s 24 unique pieces at christies.com. Described by Christie’s horology specialist Ryan Chong as “German watchmaking’s rising star”, the bold, contemporary pieces are the perfect embodiment of the slogan: ‘Schönstes deutsches Handwerk’ - ‘the most beautiful German craftsmanship’.
Created to mark the 10th anniversary of its rebirth, 24 pieces showcase the best of Moritz Grossmann’s past, present and future watchmaking tradition and the diverse skill set of its master watchmakers. The collection includes watches for men and women, including beautiful tourbillons and diamond encrusted time-pieces.
In addition to the online auction, Moritz Grossmann have created a beautiful interactive advent calendar, which can be viewed on their website here. The interactive advent calendar will allow visitors to view each piece in detail before being directed to Christie’s website where they can place a bid.
Please find attached a ‘lookbook’ with all 24 watches and a press release with further details on Moritz Grossmann and the auction.
The auction WINTER HOLIDAY SALE
starts 27 November - 10/ 11 December 2018.
CHRISTIE'S WATCHES ONLINE:
WINTER HOLIDAY SALE (Sale Nr.211)
CHRISTIE'S WATCHES ONLINE:
WINTER HOLIDAY SALE (Sale Nr.211)
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Technical Specifications
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Ref. MG-002101
Movement
Manufacture calibre 107.0, manually wound, adjusted in five positions
Dimensions Diameter: 36.4 mm, height 5.0 mm
No. of parts 230
No. of jewels 24, of which 7 in screwed gold chatons
Escapement Lever escapement
Oscillator Shock-resistant 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/hour
Power reserve 42 hours when fully wound
Functions
Hours, minutes, and subsidiary seconds with stop seconds, Grossmann winder with pusher
Case
Three-part, Platinum
Operating elements Crown in precious metal, for winding the watch and setting the time, pusher in precious metal for starting the movement
Case dimensions Diameter: 41.0 mm, height 11.35 mm
Dial
Solid silver, baton hour markers in precious metal
Hands Manually crafted, steel, annealed to a blue hue
Crystal and display back Sapphire crystal, antireflective coating on one side
Strap
Hand-stitched alligator strap with prong buckle in Platinum
Special features Shock-resistant balance with inertia and poising screws, impulse pin integrated in rim; flat balance spring; balance staff with integrated safety roller; index adjuster with Grossmann micrometer screw; plate movement with 2/3 plate on dial side, frame pillars and separately removable clutch winding mechanism; visible hand setting train on the back side of the movement; frame parts in untreated German silver; Grossmann winder with pusher and stop seconds; raised gold chatons with pan-head screws; remodified Glashütte stopwork with backlash; mainspring barrel with bilateral jewel bearings for optimised power management in the low-torque range; ARCAP train wheels; proprietary escapement with 18-tooth escape wheel; balance cock and crown wheel, intermediate winding wheel and ratchet wheel with stopwork on the modified spring barrel bearing with a gold chaton
Edition Unique piece - single edition 1 of 1.
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Press Release - 2018
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PRESSE KONTAKT
GROSSMANN UHREN GmbH
Rainer Kern - Leiter Kommunikation
Uferstr. 1
Telefon: +49 35 053 32 00 20
Fax: +49 35 053 32 00 99
rainer.kern@grossmann-uhren.com
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