Moritz Grossmann’s first automatic watch has been finally released. The ATUM Hamatic features a modern interpretation of an older-generation device: a pendulum mass, referred to as an automatic hammer mechanism.The Moritz Grossmann ATUM Hamatic has a retail price of Euro 44,800.
First showed as a prototype at Baselworld 2018, Moritz Grossmann’s first automatic watch has been finally released.
The ATUM Hamatic features a modern interpretation of an older-generation device: a pendulum mass, referred to as an automatic hammer mechanism (hence the name).
Visible through the display back, a bi-directional hammer with a heavy gold head sits on a fine stem converting even the smallest movement into winding power.
The hammer’s centre of mass is further away from its rotational axis than with a central rotor. This results in a high torque, which in turn caters for powerful winding. Thanks to the special ratchet mechanism, hammer movements from just five degrees can be used to wind the mainspring.
When fully wound, the 3 Hz (21,600 vph) Calibre 106.0 movement guarantees a power reserve of 72 hours.
Through the interplay of the hammer body together with head and spring, the automatic hammer mechanism works in both directions. A sapphire roller transfers the oscillation between hammer spring and hammer body.
Intricately crafted end springs in the hammer frame attenuate and limit deflections in case of excessive deflections.
In order to convert the energy into a continuous rotary motion, the oscillations of the hammer body are picked up by two click levers. The two-way direction of rotation of the click wheels ensures an even rotary motion, which is transferred to the free wheel via the reduction wheel and then to the ratchet wheel in the mainspring barrel.
The automatic winding system is complemented by a manual winder designed as a yoke winder that is mounted on a separate bridge. The yoke ensures that the manual winder is always uncoupled from the ratchet wheel when the Hamatic system is active in response to motion. In manual winding mode, the reduction gear is isolated from the ratchet wheel by a click-pawl idler.
The Moritz Grossmann Hamatic is available in rose gold (ref. MG-002302) and white gold (ref. MG-002303) with classic round cases measuring 41 mm x 11.35 mm.
The dial is reminiscent of the historical pocket watches by Moritz Grossmann with the distinctive pear-shaped tip of the hour hand. Measuring just 0.1 mm in width at the narrowest point, the hands are manually crafted in the manufactory and annealed over an open flame to achieve the Moritz Grossmann brown-violet hue.
Completed by a hand-stitched alligator leather strap with a gold buckle, the Moritz Grossmann ATUM Hamatic has a retail price of Euro 44,800. grossmann-uhren.com
The ATUM Hamatic features a modern interpretation of an older-generation device: a pendulum mass, referred to as an automatic hammer mechanism (hence the name).
Visible through the display back, a bi-directional hammer with a heavy gold head sits on a fine stem converting even the smallest movement into winding power.
The hammer’s centre of mass is further away from its rotational axis than with a central rotor. This results in a high torque, which in turn caters for powerful winding. Thanks to the special ratchet mechanism, hammer movements from just five degrees can be used to wind the mainspring.
When fully wound, the 3 Hz (21,600 vph) Calibre 106.0 movement guarantees a power reserve of 72 hours.
Through the interplay of the hammer body together with head and spring, the automatic hammer mechanism works in both directions. A sapphire roller transfers the oscillation between hammer spring and hammer body.
In order to convert the energy into a continuous rotary motion, the oscillations of the hammer body are picked up by two click levers. The two-way direction of rotation of the click wheels ensures an even rotary motion, which is transferred to the free wheel via the reduction wheel and then to the ratchet wheel in the mainspring barrel.
The automatic winding system is complemented by a manual winder designed as a yoke winder that is mounted on a separate bridge. The yoke ensures that the manual winder is always uncoupled from the ratchet wheel when the Hamatic system is active in response to motion. In manual winding mode, the reduction gear is isolated from the ratchet wheel by a click-pawl idler.
The Moritz Grossmann Hamatic is available in rose gold (ref. MG-002302) and white gold (ref. MG-002303) with classic round cases measuring 41 mm x 11.35 mm.
The dial is reminiscent of the historical pocket watches by Moritz Grossmann with the distinctive pear-shaped tip of the hour hand. Measuring just 0.1 mm in width at the narrowest point, the hands are manually crafted in the manufactory and annealed over an open flame to achieve the Moritz Grossmann brown-violet hue.
The solution looks interesting but the price is high!
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