At home in two time zones

GMT

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With the GMT, the independent Glashütte manufactory Moritz Grossmann presents its first watch model with two time zones. This function is in great demand among watch connoisseurs who travel a lot. A glance at the GMT provides orientation in different time zones and in an extremely stylish way.

Thanks to the classic, functional design of the watch, the two time zones stand out clearly from each other. The 12 hour scale in the middle of the dial shows the first time. It is framed by the outer 24-hour scale for the second time. This allows you to see at a glance whether it is day or night in the country in the other time zone.

The calibre 100.8

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Tech Specs

Movement

Manufactory calibre 100.8, manual winding, regulated in five positions

Special features

Grossmann balance; hand setting override and start of movement with lateral pusher; second time zone (24-hour display) by means of exterior revolving hand, time zone display that can be corrected backwards and forwards at any time using the separate crown at 10 o’clock; space-saving modified Glashütte stopwork with backlash; adjustment with Grossmann micrometer screw on cantilevered balance cock; pillar movement with 2/3 plate and pillars made of untreated German silver; balance cock and escape-wheel cock hand-engraved; broad horizontal Glashütte ribbing; 3-band snailing on the ratchet wheel; raised gold chatons with pan-head screws; separately removable clutch winding mechanism; stop seconds for hand setting

Functions

Hours and minutes, subsidiary seconds with stop seconds, second time zone (24-hour display) by means of revolving hand, Grossmann manual winder with pusher

No. of parts

253

No. of jewels

26 jewels, of which 3 in screwed gold chatons

Escapement

Lever escapement

Oscillator

Shock-resistant Grossmann balance with 4 inertia screws and 2 poising screws, Nivarox 1 balance spring with No. 80 Breguet terminal curve, Gustav Gerstenberger geometry

Balance

Diameter: 14.2 mm, frequency: 18,000 semi-oscillations per hour

Power reserve

42 hours when fully wound

Operating elements

Two crowns in 750/000 gold to wind the watch and set the time and the date, pusher in 750/000 gold to start the watch

Case dimensions

Diameter: 41.0 mm, height: 11.85 mm

Movement dimensions

Diameter: 36.4 mm, height: 5.55 mm

Dial

Solid silver, hour markers in gold

Hands

Manually crafted, in steel, for two variants annealed in brown

Glass and caseback

Sapphire crystal, antireflective coating on one side

Strap

Hand-stitched alligator leather with prong buckle in precious metal

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GMT

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