Description
Moritz Grossmann BENU Hamatic Enamel Rose Gold
Celebrating the 200th anniversary of the birth of Carl Moritz Grossmann, the BENU Hamatic Enamel Rose Gold brings together two remarkable traditions of fine watchmaking: the artistry of a handcrafted enamel dial and an unconventional mechanical winding system. Released in 2026 as part of the Glashütte manufactory’s anniversary collection, this exceptional timepiece pays tribute to the inventive spirit of its namesake while presenting a distinctive interpretation of classical German watchmaking. Limited to just eight pieces worldwide, the rose gold edition combines historical character with the mechanical ingenuity for which Moritz Grossmann is renowned.
The dial is a particularly striking element of the design, with its deep, jet-black enamel surface providing an elegant background for the applied Arabic numerals in solid rose gold. Unlike previous HAMATIC models, which featured Roman numerals, this anniversary edition introduces a new visual character to the collection. The polished gold numerals complement the warmth of the rose gold case, while the manually crafted gold hands reinforce the meticulous attention to detail. Completing the historical connection is the ‘M. GROSSMANN’ signature, reproduced in a lettering style dating to 1875.
Producing the enamel dial is an exercise in patience and precision. Layers of finely prepared enamel are applied to the dial and repeatedly fired, gradually developing the depth, lustre and remarkable smoothness associated with traditional enamel craftsmanship. Each firing presents the possibility of imperfections, making the successful completion of such a dial a considerable achievement. The resulting glossy black surface has a richness that contrasts beautifully with the warm rose gold details.
At the centre of the BENU Hamatic Enamel is the manufacture calibre 106.0, an automatic movement distinguished by its unusual hammer-winding system. Rather than employing a conventional rotating rotor, the movement uses an oscillating, pendulum-style hammer weight to harness energy from the wearer’s movements. A sophisticated arrangement of click wheels and reduction gearing transfers this motion to the mainspring. Comprising 312 individual components and offering a 72-hour power reserve, the calibre represents a fascinating interpretation of a historic automatic winding principle.
The movement is also a showcase of traditional Glashütte finishing and construction. Its untreated German silver two-thirds plate and pillars are complemented by wide horizontal Glashütte ribbing, hand-engraved components, raised gold chatons and carefully finished screws. The cantilevered balance cock incorporates the Grossmann micrometer adjustment system and features a special ‘1826’ engraving commemorating the birth year of Carl Moritz Grossmann. These details are visible through the sapphire crystal exhibition case back, inviting a closer appreciation of the mechanical craftsmanship within.
Presented in a three-part 18-carat rose gold case measuring 41 mm in diameter and 11.35 mm in height, the watch is fitted with sapphire crystal and a matching gold crown. A hand-stitched brown alligator leather strap with an 18-carat gold prong buckle completes the design. With its black enamel dial, precious metal construction and unconventional automatic movement, the Moritz Grossmann BENU Hamatic Enamel Rose Gold is a significant anniversary release, bringing together the historic identity and contemporary craftsmanship of one of Glashütte’s most respected independent manufacturers.
Technical Specifications
Limited Edition
- 200th anniversary of the birth of Carl Moritz Grossmann
- Limited to 8 pieces worldwide
- Released October 2026
Movement
- Moritz Grossmann manufacture calibre 106.0
- Automatic winding with oscillating hammer mechanism
- Regulated in five positions
- 312 components
- 38 jewels, including 3 in screwed gold chatons
- 72-hour power reserve when fully wound
- Movement diameter: 36.4 mm
- Movement height: 5.15 mm
Functions
- Hours and minutes
- Small seconds
- Stop-seconds function for precise time setting
Automatic Winding System
- Oscillating, pendulum-style hammer weight
- Bidirectional winding through click wheels
- Click pawl in reduction gearing
- Idler with pawl clicks
- Separately removable clutch winding mechanism
- Manual yoke winding mechanism
Escapement and Balance
- Lever escapement
- Shock-resistant Grossmann balance
- 4 inertia screws and 2 poising screws
- Nivarox 1 balance spring
- Balance diameter: 10.0 mm
- Frequency: 21,600 semi-oscillations per hour (3 Hz)
- Grossmann micrometer screw adjustment on cantilevered balance cock
Movement Construction and Finishing
- Pillar movement with two-thirds plate and pillars in untreated German silver
- Hand-engraved two-thirds plate and cantilevered balance cock
- Wide horizontal Glashütte ribbing
- Double-band snailing on the mainspring barrel
- Raised gold chatons with pan-head screws
- Special ‘1826’ engraving on the balance cock
Case
- Three-part case in 750/000 (18-carat) rose gold
- Diameter: 41.0 mm
- Height: 11.35 mm
- Rose gold crown for winding and time setting
Dial
- Jet-black enamel dial
- Applied solid rose gold Arabic numerals
- Historic ‘M. GROSSMANN’ lettering in 1875 style
- Small seconds display
Hands
- Manually crafted from 750/000 rose gold
- Polished finish
Crystal and Case Back
- Sapphire crystal with antireflective coating on one side
- Transparent sapphire crystal exhibition case back
Strap and Buckle
- Hand-stitched brown alligator leather strap
- Prong buckle in 750/000 rose gold
