TEFNUT Sleeping Beauty Milanaise


You can configure your own watch. To do this, please select the desired strap length. Your selection will be marked by a red border.


A further jewellery watch for the TEFNUT family was the result of a joint venture between two worlds: an imaginative motif created by award-winning designer Michael Koh from Singapore paired with schönstes deutsches Handwerk of the Grossmann manufacture in Glashütte. Michael Koh‘s passion is exceptional precious stones that he showcases in unique ways. His creations tell mystical stories — the TEFNUT Sleeping Beauty leads us to the secretive world of the moon.

Despite its grace and compact size with a diameter of 26 mm and a height of merely 4 mm, the modified calibre 102.0 sets the stage for a fairy-tale scene. The classic pillar movement with the 3/5 plate embodies characteristic Grossmann calibre elements such as the cantilevered balance cock, the Grossmann poising screws, the raised chatons, the separately removable winder module, and the mass-optimised Grossmann balance.

The TEFNUT Sleeping Beauty Milanaise is now available with an innovation – an elaborate Milanaise bracelet: it is made in white or rose gold to match the case and lends the watch its perfect elegance. Thanks to the ultra-fine workmanship, it gently nestles on the wrist and feels cool and airy on the skin even on hot days. The folding clasp can be variably adjusted and easily released.

You can find more details about this product on our official Moritz Grossmann website.

Additional information


Rose gold, White gold


Manufacture calibre 102.0, manually wound, adjusted in five positions

No. of parts


No. of jewels

26, of which 3 in screwed gold chatons


Lever escapement


Nivarox 1 balance spring, Shock-resistant Grossmann balance with 4 inertia and 2 poising screws


Diameter: 10.0 mm, Frequency: 21,600 semi-oscillations per hour

Power reserve

48 hours when fully wound


subsidiary seconds, Hours and minutes

Operating elements

Crown in 750/000 gold for winding the watch and setting the time, with gemstone


750/000 gold, three part

Case Dimensions

Diameter: 36.0 mm, height: 9.8/7.1 mm

Movement dimensions

Diameter: 26.0 mm, height: 3.45 mm


Bezel set with 62 brilliant-cut diamonds, TW vvsi


diamond ring set with 62 brilliant-cut diamonds, faced with mother-of-pearl, guilloched, moondisk made of mother-of-pearl, roman numerals, TW vvsi


steel, annealed to a brown or brown-violett hue, Hand-crafted

Crystal / display back

Sapphire crystal, antireflective coating on one side

Special Features

space saving and modified Glashütte stopwork with backlash, adjustment with Grossmann micrometer screw on a cantilevered balance cock, raised gold chatons with pan-head screws, separately removable clutch winder, ARCAP train wheels, balance staff with integrated safety roller, flat balance spring, frame parts in untreated German silver, impulse pin attached to rim, mainspring barrel with bilateral jewel bearings for optimised power management, plate movement with 3/5 plate and frame pillars, proprietary escapement with 18-tooth escape wheel, shock-resistant balance with inertia and poising screws


Milanaise bracelet with folding clasp in 750/000 gold

Strap color

RG Milanaise, WG Milanaise


Pin buckle

Closer material

750/000 gold

Strap Length