Greubel Forsey luxury During the Geneva Watch Days 2021, Greubel Forsey presents the third and final interpretation of its GMT Earth. Crafted from titanium, this deep black version is limited to 11 pieces.
Greubel Forsey’s GMT Earth is an extraordinary watch that, for the first time, allows you to see the world at a glance.
This technological feat first appeared in 2011. At the time of the first “GMT”, the Earth was not yet fully manifested. Seven years later, the design for Earth is finally complete: visible from every angle in the new sapphire niche, it appears to be floating in space. On the front and back, a laser-engraved globe shows the world time in a quick and easy-to-read format.
The first version of GMT Earth replica was platinum. The second is platinum. Now, this watch comes with a new titanium case. The titanium GMT Earth will be limited to 11 pieces, three times less than the original. Weighing just 117 grams, the strap is two-thirds lighter. The case is a little over a third lighter.
Titanium is used not only for the entire case, but also for the bridges, GMT pusher, crown and folding clasp, the latter two being the parts most vulnerable to shocks and scratches.
To complement the light and matte shades of titanium, Greubel Forsey opted for a black dial. It works with speckled baseplates and all matte bridges with straight sides, polished bevels and countersunk holes. This treatment is also used on the all-black natural rubber strap, whose inner surface is engraved with the basic values of Greubel Forsey and is visible on the bezel.
GMT Earth displays four key pieces of information on its dial side. The first is the eccentric hour, minute and second display. The first two large skeleton hands are decorated with Super-LumiNova luminous coating, and there is a small seconds on the sapphire disc at 3 o’clock. Discount watches
On the left is the GMT hour-marker, whose red hands stand out effortlessly against the hand-engraved lacquered black-gold disc. The third, located opposite the crown, is the power reserve, whose design follows the same process: black engraved with gold, filled with lacquer and covered by silver-polished steel hands.
Finally, between 7 and 9 o’clock, the earth occupies the most space, and completes a full rotation in 24 hours. An engraved sapphire ring around the equator acts as a day/night indicator, allowing you to instantly see which hemisphere is during the day and which is at night.
The last window on the side of the strap opens to show the equator. Thanks to this, the Earth can really be seen from every angle. quality replica watch
Finally, on the bottom cover side, the world time display indicator completes the design. The 24 time zones represent UTC for the 24 major cities – those that observe daylight saving time on a white background.
GMT Earth features Greubel Forsey’s third invention, the 24-second tourbillon, which uses rapid rotation and setting an angle to solve gravity-related positioning problems that are critical to the operation of the oscillator. The 25° angle and rapid rotation of the tourbillon cage significantly improve the timekeeping performance of systems containing only one tourbillon, especially those in a fixed position.
technical details
Model: GMT Earth
limited
Edition 11 Pieces Titanium
special function
GMT • Second Time Zone • Rotating Earth with Universal Time and Day and Night • Full and Global View from Northern Hemisphere to Southern Hemisphere • Universal Time in 24 Time Zones • Summer and Winter Time • Tourbillon 24 seconds • Hours and minutes • Small seconds • Power reserve indicator
move
Manual winding movement with 3 patents
Movement size
• Diameter: 36.40 mm
• Thickness: 11.55mm
number of parts
• Movement: 453 parts
• Tourbillon cage: 86 parts
• Frame weight: 0.39g
number of jewels
• 60
• Olive Dome Jewelry in a Gold Sink
Chrono Power Reserve
• 72 hours
barrel
• Two coaxial tandem fast-turning barrels (one revolution in 3.2 hours), one of which is fitted with a sliding spring to avoid excessive tension
balance wheel
• Variable inertia with gold averaging time screw (10mm diameter)
frequency
• 21,600 vibrations/hour
gossamer
• Phillips end curve
• Geneva Studs
motherboard
• Nickel silver, matte and speckled, polished bevel and countersunk, ruled sides, black finish
bridge
• Nickel silver, matte, polished beveled and countersunk, ruled sides, black finish
• Flat black polished steel tourbillon bridges, hand-polished bevels and countersunk
• Flat black polished steel screws, heat treated blue
Tourbillon
• 25° tilt, 24 seconds rotation
• Light alloy cage struts
• Titanium cage bridge
• Gold counterweights
transmission
• Involute profile
• Tangential helical gear on the fixed wheel and profiled teeth on the escape wheel pinion
monitor
hours and minutes
small seconds
72 hours power reserve,
Second time zone GMT
24 time zones world time
Rotating Titanium Globe with World Time
Complete view from North Pole to South Pole
summer time
day and night
External
case
Titanium with titanium plate, engraved text, hand-finished text, screwed-in strap
Side window, synthetic sapphire crystal
Three-dimensional, variable-geometry lugs
Three-dimensional synthetic sapphire crystal case back with integrated dome
Three-dimensional, asymmetrical synthetic sapphire crystal bezel
Raised polished engravings “GMT Earth” and “Greubel Forsey” on hand punched background
Gold security screw hand punched background
Titanium GMT Button with Raised Engraving
engraved personal number
Water resistance: 3atm – 30m – 100 feet (Standard NIHS 92-20/SN ISO 22810:2010)
case size
Diameter: 45.50mm
Height: Case 16.18mm
Synthetic Sapphire Dome Height: 18.00mm
Crown
Titanium, synthetic sapphire insert, with GF logo
dial side
Synthetic sapphire multi-stage indexes, current increasing indexes, engraved and lacquered minutes and small seconds
Gold Power Reserve and GMT Indicator, Engraved and Lacquered, Round Grain, Black Finish
Rotating Globe Synthetic Sapphire Night UTC Indicator, Engraved and Painted
Movement side
Synthetic sapphire disc showing city name surrounded by 2 gold rings (UTC and daylight saving time), engraved and lacquered
Individually numbered gold “Daylight Savings Time” disc with raised engraving
Earth’s South Pole with UTC Indicator, Engraved and Painted, Hand Matte Ground
pointer
Polished stainless steel hours, minutes, small seconds and power reserve, hand-polished countersunk
Second time zone GMT indicator, red triangle
Strap and Buckle
Rubber or hand-stitched alligator leather
Titanium folding clasp with engraved GF logo