Miyota Caliber 8285
Miyota Caliber 8285

Miyota Caliber 8285

ManufacturerMiyota
Caliber Number8285
Movement TypeAutomatic, self-winding mechanical
Lignes13”’
Diameter
29mm
Height
5.94mm
Jewels
21
Beat Rate
21,600 vph
Lift Angle
49 degrees
Power Reserve
42 hours
Rotor Winding Direction
Unidirectional, counterclockwise
Hand-Windable?
Yes
Anti-Shock Device
Parashock
Stem
065-212 (tap 10)
Hand Count3
Hand Sizes
1.65mm / 1mm / .17mm
FunctionsCentral hours; central minutes; central sweeping seconds; day of the week at 12:00; date at 3:00
Hacking Seconds?
Unconfirmed
Quickset Date?
Yes
Country of ManufactureMade in Japan
Known Models
(Add your watch to the comments below…)

The Miyota caliber 8285 is an automatic movement with a day-date complication. This movement is based on the cal. 82XX series of what Miyota calls their “Standard Automatic” line. It is made in Japan and has 21 jewels and a beat rate of 21,600 vph with a power reserve of about 42 hours.

Availability:

This movement is discontinued and no longer available from Miyota. You may still be able to find it from watch parts sellers.

Miyota Day-Date:

The calendar wheels on this caliber allow for a display similar to the Rolex Day-Date, with a panoramic full day of the week at 12:00 and date window at 3:00.

Examples of watches with this movement:

Watches with the 8285 include the MeisterSinger Urban Day Date, as well as this Cadisen Business Day-Date.

Additional Resources:

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