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

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.

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

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