Miyota 9100

Citizen (Miyota) · Automatic · Mid tier · Family: Miyota 91xx

Factory specs

Caliber
9100
Made in
Japan
Frequency
28,800 bph (4 Hz)
Power reserve
40 h
Jewels
26
Hacking
Yes
Hand winding
Yes
Accuracy
-10 / +30 s/day
Diameter
—
Height
5.52 mm
Functions
Hours, Minutes, Seconds, Date, Day, Power reserve
Same family
Miyota 9120, Miyota 9122, Miyota 9130, Miyota 9132, Miyota 9133

Multifunction member of Miyota's "Premium Mechanical" 9100 series (siblings 9120, 9122, 9132): central hours, minutes and seconds, date, day and month, a power-reserve indicator and a 24-hour display. The schema has no "month" or 24-hour function, so those are only recorded here. Factory spec from Miyota's official page: 13 1/2 lignes, 5.52mm high, 26 jewels, 28,800 vph, about 40h running time, accuracy -10 to +30 s/day, posture difference under 30 s; stop-seconds, automatic and hand winding, quick date setting. Miyota states the size only in lignes, so diameter_mm is left blank (Caliber Corner gives 30.2mm for the 13 1/2-ligne siblings 9120 and 9122).

Watches with the Miyota 9100

WatchPrice fromMovementDia. mmThick mmCrystalMicro-adjust
Waldhoff Multimatic $675 Miyota 9100 42.5 14 Sapphire —
Waldhoff Olympus $759 Miyota 9100 43 13.5 Sapphire —
Waldhoff Multimatic II $789 Miyota 9100 41 11.4 Sapphire —
Waldhoff Multimatic Skeleton $859 Miyota 9100 42.5 13.85 Sapphire —

Sources