Introduced at Basel-world 2008, this version of Jumping Seconds Watch houses the in-house A07M movement developed by Habring².
A07 can be seen as the „family name“and indicates the relation to last year’s automatic calibre with jumping second. „M“, however, simply means „manually wound“.
Thus, the A07M bridges the gap which arose from the discontinuation of the jumping second from the year 2005. But unlike the model 2005 which reverted to the rare calibre Chezard 116, the new A07M is, like it’s automatic A07 calibre from the own manufacture. This means Habring² is the only manufacture worldwide which offers an in-house-developed and currently produced movement with jumping second as „simple“complication.
The small but nice series A07 (short for Austria 2007) already included complications like the indication of power reserve (A07G), second time-zone (A07U), calendar (A07K) and the Tourbillon (A07T).
The model of 2008 only differs due to a slightly modified logo and the double anti-reflective coated and domed sapphire glass from the ancestor. The timeless stainless-steel housing still measures 42mm in diameter, the metal dial in combination with the applied hour indications, the Breguet numbers and the hands shows elegant restraint.
The sapphire-glass caseback allows insight into the very heart of the watch: concentrically stripes, Parlage or other ornamental engravings, the manually polished Habring² logo or the also manually polished screws are the decorative parts. These are completed by technical intricacies like Chronometer-parts and Triovis fine regulation.
The now even softer and manually produced calf-leather-watch strap strikes immediately. Another small novelty 2008 is the even more compact box made of Oregon pine. What certainly remained is the assortment of spare parts which enables world-wide independence for each Habring² once delivered.
The dead beat jumping second was invented in the late 1950’s, most probably for so called „doctors watches“. It is much easier to follow the process of the second hand compared to the classic central second while concentrating on and counting the pulse of a person.
Even the technical function of a jumping second is quite simple, a top-quality wristwatch, however, requires a high degree of reliability. A small feather is pre-tensed through the wheelwork and relaxes suddenly, dependent on the frequency of the balance-wheel, at each 6th (21,600 A/h) or at each 8th (28,800 A/h) of the escape wheel ( =1 second).
In doing so, the second-wheel (on which the second hand is fixed), gets carried along one pitch. The time needed for such a jump only a few hundredths of a second. That is why the course of movement seems much more precise than at every electronically operated watch.
The largest and best known manufacturer of movements with jumping second was the manufacture Chézard, named after the location of the company, with its calibers 115/116 and the more simple 7400. Chézard has been a Member at Ebauches SA from 1937 until 1969 as the production was closed down.
Habring² has had access to a limited amount of brand new movements of the caliber 116 for the realisation of the jumping second 2005. Due to the surprisingly great success of this model and the continuously increased demand for this simple complication, Habring² has set the focus on the very same complication while developing the own automatic movement A07. This movement was presented at Baselworld 2007 and is meanwhile available with even more additional functions.
During summer 2008 the automatic movement A07 with jumping second and large date will be accompanied by the very puristic hand-wound movement with only three hands in the centre of the dial. This so called A07M calibre is developed in order to replace the Chézard 116 which is no longer available.
Habring² is with its calibres A07 and A07M presently the only manufacturer worldwide which newly produces movements with jumping second as “simple complication” out of proprietary development.
Model: Habring² – “Jumping Second”
Calibre A07M, “Triovis” fine regulation system, escapement parts in chronometer quality, hand engraved Habring² logo on the top bridge visible through sapphire crystal caseback, indication of hours, minutes and in-house developed dead-beat-center-second device. 24 jewels, power reserve after being fully wound: approx. 48 hours, 68 maintenance relevant parts. Available in stainless steel with 42mm diameter. Double sided antireflective coated sapphire crystal. Metal and mother-of-pearl dials in several colour combinations.