AUTOMATIC & MANUAL WINDING MOVEMENT
WITH FRONT VIEW SKELETON
Basic s
ecification
Function
Automatic & manual winding
Display by means of hands: hour, minute, second.
Front view skeleton
Stop second device
Shock-absorber device for balance staff
Technical characteristics
Balanceable weight of hands
Second hand Max. 0.60μN ・m
Minute hand Max. 1.25μN ・m
Hour hand Max. 1.50μN・m
Hands fitting force
Second hand Max. 30N
Minute hand Max. 50N
Hour hand Max. 50N
Lift angle 51°
Casing Non-corresponding to "Divers' watches" defined by ISO6425
Time performance
※Accuracy of the mechanical watch is different from the daily rate of the quartz watch and the accuracy will change
maximum of several ten seconds during rewinding the spring, then the accuracy of the half winding condition will
be different from that of full winding condition.
<Time performance measurement condition>
Accurac
Measure within lapse of 10～60 minutes from full winding.
Posture difference
Measure accurac
in 4 different
ostures shown on the
ri
ht
icture within la
se of 10 ~ 60 minutes from full windin
.
※Direction of 4 postures ①Date Dial side Up ②6 o'clock side up ③9 o'clock side up ④3 o'clock side up
Runnin
time
Measure the runnin
time from full windin
.
※The mainspring becomes fully winded by rotating the ratchet wheel 7.5 times (turning the crown 40 times).
Cal. 90S5
Φ26.0mm
Ligne 11-1/2'''
Overall diameter
Φ25.6mm
3.90mm
28800 vibrations per hour
Case fitting diameter
Total height
Vibration frequency
24 Jewels
Jewels
Accuracy
Posture difference
Running time
-10～30 seconds/day
Under 40 seconds/ day
More than 42 hours
④③
