Miyota Caliber 9120
Miyota Caliber 9120

Miyota Caliber 9120

ManufacturerMiyota
Caliber Number9120
Base Caliber
Miyota 9100
Movement TypeAutomatic, self-winding mechanical
Lignes13.5”’
Diameter
30.2mm
Height
5.52mm
Jewel Count
26
Beat Rate
28,800 vph, 4 Hz
Lift Angle
51 degrees
Power Reserve
~40 hours
Rotor Style
Ball-bearing
Rotor Winding Direction
Unidirectional (clockwise)
Hand-Windable?
Yes
Anti-Shock Device
Parashock
Hand Count6
Hand Sizes
1.52mm / 1mm / .17mm / .25mm
FunctionsCentral hours; central minutes; central sweeping seconds; 24 hour hand at 6:00; date window at 4:30; day of the week subdial at 9:00; month subdial at 3:00
Hacking Seconds?
Yes
Country of ManufactureJapan
Known Models
(Add your watch to the comments below…)

Miyota caliber 9120 uses the framework of Miyota’s 9 series of what they categorize as “premium automatic” watch movements. The cal. 9120 is made in Japan and has 26 jewels and a frequency of 4 Hz or 28,800 beats per hour.

Functionality:

The notable feature of watches with the calibre 9120 is that is has 3 subdials that look like a 3-6-9 style chronograph watch. However, the 9120 is not a chronograph movement. The subdials are for the day of the week (9:00), month (3:00), and a 24 hour indicator (6:00). The 24 hour indicator functions like a pointer style day/night indicator – it does not indicate the time in a second time-zone.

Accuracy Rating:

According to Miyota, the calibre 9120 has an average accuracy of between -10 and +30 seconds per day. This is in normal operating conditions.

Replacement Prices:

At the time of this caliber listing, replacement prices for the 9120 were found online in the range of $102 USD – $129.99 USD.

Additional Resources:

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