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You are here: Home / Families / Miyota 82/8N Series

Miyota 82/8N Series

Last Update: June 10, 2019

BRANDS: Miyota

Production: 1976 – Current
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s
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The 82/8N series of movements is the original automatic movement from Miyota, in production from 1976 through the present day. It operates at 21,600 A/h and most have 21 jewels. The automatic winding versions have uni-directional (counter-clockwise) winding.

Distinguishing features of the 82/8N series include a single central screw for the central winding rotor and a simple index for regulation. The balance wheel is located at 5:00 when viewed with the winding stem at 9:00 and is located with a clockwise cock.

All members of the Miyota 82 family have indirect central seconds, which causes a noticeable wobble to the central seconds hand. When struck, the seconds hand can appear to pause for up to 2 seconds due to slack in the movement.

The entire movement is held together with just 3 screws, aiding in construction but making repair more difficult.

Note that many Internet sites date the introduction of the Cal. 8200 to 1974, but the official Citizen catalog from 1979 specifically dates this movement to Shōwa 51.3, or March, 1976.

Current models are indicated in bold below.

No DateDate OnlyDay-Date
Hand Winding8270
8N33 SK
8260
Automatic
Central Seconds
8228A OH
82S0 PS OH
8N24 SK
8N26 SK HH
8210
8215 SR
821A
8200
8203
8205 SR
820A
8285 SR OD
Automatic
24 Hour Hand
8247
82D7 OH
8217
Automatic
Small Seconds
8245
82S5 PS OH
8N40 PS
8218
Automatic
24 Hour Hand
Small Seconds
82S7 PS OH8219
  • OH = Open Heart at 7:00
  • SK = Skeleton
  • PS = Partial Skeleton
  • HH = High Hands
  • OD = Outer Date
  • SR = Solid Rotor

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Calibre Start Year End Year Jewels Diameter (mm) Height (mm) Complications
Miyota 8205 1977 21 25.60 5.67 Bilingual Day Wheel, Date, Day, Hand Winding, Quick Date Correction, Quick Day Correction
Miyota 8215 1977 Current 21 25.60 5.67 Date, Hacking Seconds, Hand Winding, Quick Date Correction
Miyota 8217 21 25.60 5.67 24 Hour Hand, Date, Hand Winding, Quick Date Correction
Miyota 8218 21 25.60 5.67 Date, Hand Winding, Quick Date Correction
Miyota 8219 21 25.60 5.67 24 Hour Hand, Date, Hand Winding, Quick Date Correction
Miyota 8285 21 29.20 5.94 Date, Day, Hand Winding, Outer Day Wheel, Quick Date Correction
Miyota 82S0 21 25.60 5.67 Hand Winding
Miyota 82S7 Current 21 25.60 5.67 24 Hour Hand, Hand Winding
Miyota 8N24 21 25.60 5.55 Hand Winding
Miyota 8N40 21 25.60 5.55 Hand Winding

Miyota 8205

Miyota 8215

Miyota 8217

Miyota 8218

Miyota 8219

Miyota 8285

Miyota 82S0

Miyota 82S7

Miyota 8N24

Miyota 8N40