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Grönefeld Presents One Hertz Techniek Watch

Dutch watchmaker Grönefeld announces the release of its model One Hertz Techniek, released in a limited edition. The novelty is equipped with a rare nowadays watch complications, which was called "dead seconds". This complication has been popular in the 18-19 centuries and used in marine chronometers.
The essence of this complication is the following: the second hand on the dial does not move smoothly, that is, with a frequency of 8.6 movements per second and jumps, one jump per second with a frequency of 1 Hz. Most of the time the hand is in place, and when a second is passed, it jumps at exactly one scale. Movement of the second’s hand is carried out by means of a barrel and is driven by a system of gears. Another barrel is responsible for the display of hours and minutes.

Grönefeld One Hertz Techniek watches
Grönefeld One Hertz Techniek watches

The One Hertz Techniek watch is available in two versions - in a case of titanium (One Hertz Techniek) and in a case of titanium with a black DLC-coated (One Hertz Techniek Nocturne). The case is round, its diameter is 43 mm, thickness - 12.5 mm, water resistant - 30 meters.

Grönefeld One Hertz Techniek watch
Grönefeld One Hertz Techniek watch

Grönefeld One Hertz Techniek watch caseback
Grönefeld One Hertz Techniek watch caseback

The multi-level dial, partly skeletonized, is made of stainless steel. A small window with roman numerals and two hands are located at the 13 o’clock position. The additional dial with a second’s hand is at the 8 o’clock position. The analog-reserve indicator and the indicator of the caliber setting are located at 11 and 3 o'clock. A double anti-reflective sapphire crystal protects the dial.

Caliber G-02
Caliber G-02

The flat sapphire crystal, closing the back cover, allows monitoring the operation of the hand-wound mechanism G-02. The caliber in diameter of 34 mm and thickness of 9.5 mm consists of 285 parts, assembled by 39 jewels, has a frequency of 21,600 vibrations per hour and a 72 - hour power reserve.
The model One Hertz Techniek is supplied on a matte black leather strap. The watch is released in a limited edition of 30 items.

Official site of Grönefeld.

Written by Angel

22.01.2013

 


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 Grönefeld    

The family name Grönefeld has long history. In ancient small town of Oldenzaal, located in the Netherlands, in 1912 in a small shop where the old church could see the city, began his career as a watchmaker Johann Gronefeld. Then the brothers Bart and Tim continued on, who chose at the time of their grandfather. Workshop is now in the same building where  worked Gronefeld Johan, who created the family business of watches, which never ceased production of watches. And this fact is an exceptional rarity in the history of the watch industry. The brothers were in Switzerland...
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