cosc

[constantine]

http://www.swisstime.ch/it-WALTHAM-m11.html#.UpzZg8TuJws

The access is by invitation only

[george_]

http://www.swisstime.ch/it-WALTHAM-m11.html#.UpzZg8TuJws

The access is by invitation only
(Κάντε κλικ εδώ να εμφανιστεί η φωτογραφία.)

δυστυχως,αλλα δεν ειναι η εταιρια που σκεφτηκες

[george_]

subir foto

[constantine]

τα εχω δει τα Lord
πανακριβα ποιος θα τα παρει
 

[george_]

[trelovet]

Θέλεις να μας εξηγήσεις λίγο τα διαγράματα για να τα καταλάβουμε όλοι ??

[george_]

Για το 2013  έχει το νούμερο για κάθε εταιρία, κάθε μήνα και στο τέλος το συνολο του έτους. Σημαντικό είναι ότι έχει και το νούμερο, για τα quartz

[george_]

sube imagenes

sube imagenes

subefotos


1. It is essential for a piece to meet seven criteria: average daily rate, mean variation in rates, greatest variation in rates, difference between rates in horizontal and vertical positions, largest difference in rates, thermal variation and rate-resumption.

2. Minimal requirements in seconds per day (s/d), category 1 (diameter of the movement less than 20 mm)
- average daily rate = -4 / +6
- mean variation in rates = 2
- greatest variation in rates = 5
- difference between rates in horizontal and vertical positions = -6 / +8
- largest difference in rates = 10
- thermal variation = ± 0.6
- rate-resumption = ± 5

3. Minimal requirements in seconds per day (s/d), category 2 (diameter of the movement equal or superior to 20 mm)
- average daily rate = -5 / +8
- mean variation in rates = 3.4
- greatest variation in rates = 7
- difference between rates in horizontal and vertical positions = -8 / +10
- largest difference in rates = 15
- thermal variation = ± 0.7
- rate-resumption = ± 6

4. Chronometer’s uniqueness: a serial number is engraved on the movement as a certification number will be given to the movement that passed the tests.