ow hey das ook een gave!!
om de tijd gelijk te zetten zijn er wel apparaatjes toch die met magneetjes werken die op de band ingebracht zijn?
kijk: zoals Arie zegt, tegenwoordig mag dat geen probleem meer zijn…
fascinerend nietwaar? 
dank:)
Ressence type 3 http://ressence.eu/collection/type-3/#section-1307
NO HANDS, NO CROWN
Ressence design is characterised by purity and minimalism. This quest for pared-down design includes the process of dematerialising the timepiece; a process illustrated by the elimination of traditional hands and by the invisible fluid technology used to project the indications. And by removing the crown, the TYPE 3 opens up a whole new chapter in this quest for simplicity. The sapphire case back fulfils the functions of the crown with quadrants on the case back replacing different crown positions. The Type 3 is wound up by turning the case back. To change the date, it is simply necessary to make a longer rotation through 200° in order to arrive at the date quadrant. The hour is set by starting from the neutral position and turning in the direction indicated. A gravitational gearing system allows time setting to be disconnected by simply inverting the watch.
oeff das ook een mooie!! dank!