Only the strap adjustment requires a little patience and the right tools. I had to remove 4 sts (ie 4 cm) so that the shows held in its place. My wrist circumference is 17 cm.
Adjusting and handling are simple, but to control the automatic time setting, better read all the documentation. However, this is fairly quick (thankfully). It is "impressive", but very nice.
To remove the stitches, I opt for a small nail stuck in a vise pliers to pull the stitches. There are small holes in 8 mesh (inner side, four on each side of the clasp), and a small arrow indicates the direction of exit. When the mesh post is dislocated a millimeter, just take tweezers and pull gently. Voila. Otherwise, there is the jeweler. It took me 5 minutes, because I do not usually.
Which is significant: French day name (9 languages to choose from) and the choice of date format (dd / mm / yyyy or mm / dd / yyyy). The selection of the city (capital) of a country automatically generates the display of the corresponding time.
The update is performed several times a day (if the first failed to midnight). Setting the time winter / summer automatic or manual (selectable), and is scheduled for Paris in 02 h 00 (winter => summer) and 03 00 (summer => winter), corresponding exactly to the time change official).
Quartz precision does not force to try to update it every night. To perform the first update, it is recommended to place it near a window. An indicator will show if the update has been completed and the receive power level.
I do not regret my purchase. It remains to see if the battery life is consistent with the indication of the manual (about 2 years).
Purchase without hesitation. It remains to decide on a radio-controlled model ...