Miyota 6T Series

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BRANDS: Miyota

Production: – 2019
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

Miyota Cal. 6T51 is a compact automatic movement popular with OEMs and spawned a small family of similar movements. It is a full-featured movement running at 28,800 A/h with bilingual day and quickset date wheels. Cal. 6T51 has been in the Miyota catalog since at least 2000 and is likely related to the Miyota Cal. 82 family. As of 2019, no Cal. 6 movement is listed on the Miyota website, though Cal. 6T51, 6T15, and 6T28 were still listed in the 2019 catalog.

Distinguishing features of the movement include a large number of ball bearings visible around the central winding rotor and an unusual regulator with a perpendicular screw. When viewed from the back with the winding stem at 9:00, the balance wheel is located at 7:00 and is located by a counter-clockwise cock.

Cal. 6T51 has a central winding rotor that operates in the clockwise direction and can also be wound by hand. The movement measures 19.80 mm (8.75 ligne) in diameter and is 5.98 mm thick.

Day-Date	Date Only	Open Heart	Hand-Winding Skeletonized
6T51	6T15	6T28	6T33 6R33

Calibre	Start Year	End Year	Diameter (mm)	Diameter (ligne)	Height (mm)	Complications
Miyota 6T15	2010	2019	19.80	8.75	5.98	Date, Hand Winding, Quick Date Correction
Miyota 6T28	2017	2019	19.80	8.75	5.98	Hand Winding
Miyota 6T33	2009	2016	19.80	8.75	4.24
Miyota 6T51		2019	19.80	8.75	5.98	Bilingual Day Wheel, Date, Day, Hand Winding, Quick Date Correction