With the new «
AUTOQUARTZ » movement (caliber ETA 205.911, 11 ½''', diam. 25,60
mm, hight 3,95 mm), ETA SA Fabriques d'Ebauches, Grenchen (Switzerland),the
first european producer of watch movements and components, worked
out a product combining electronic precision and mechanical dependability,
wich constitutes a major technological advance doing away with both
the battery and all maintenance operations. It represents a significant
step towards the third millenium and the challenges it brings.
Many brands have already fitted their watches with
this new product which will doubtless give quite a turn to the traditional
mechanical and quartz watch industry.
How does this movement works ?
- An oscillating weight (selfwinding mechanism
in a traditional watch) transmits the mechanical energy to the
micro-generator through the microbarrel.
- The generator converts this mechanical energy
into electrical energy and stores it in an accumulator.
The accumulator supplies the
integrated circuit with energy. Regulated by the quartz, the
integrated circuit generates the control signals of the motor
which transmits these impulses to the gear train whose wheels
and the connected hands are displaying hours, minutes, seconds
and the date.
The ETA « AUTOQUARTZ » movement includes
thanks to its advanced concept all the advantages of the mechnical
and quartz watches excluding their weaknesses :
- it has the precision of the quartz wach, - the
movement is wound like an automatic watch by the movement of the
wrist or by means of the crown,
- the mechanical regulator stores all the motions
(quick, slow, strong) and produces maximum generator efficiency,
- the movement provides excellent shock protection,
- the mechanical regulator (accumulator) with
a capacity of 3 mAh has an operating life of more than 10 years
and a theoratical power of 160 years with more than 1.5 Ah,
- the integrated circuit is monitoring the accumulator's
charging and discharging, protecting the accumulator against overcharge,
controlling the accumulator's restart after a complete discharge
and finally controlling the power of the motor,
- the movement power reserve covers 100 days (min.)
- it is fitted out with EOE device (energy need
indication) with the second hand advancing every 4 seconds,
- in order to profit from the great power reserve
advantages the movement offers, it can be stopped with the stem
drawn out to position 3,
finally, the « AUTOQUARTZ
» caliber does'nt need a battery, which meets requirements of
The technology developed
to work out this movement has already been extended to another product
: a chronograph version with a selfwinding mechanism has been developed
(caliber 13 ½''' ETA 206.111) and others corresponding to the market
needs will follow.
A significant stage in the very long story of the watch industry
and its numerous discoveries has turned, proving the innovation
spirit of the worldwide oldest movement producer of the world with
its origin going back to the year 1793 !