Family: Miyota chronograph quartz
The Miyota OS21 is a quartz chronograph movement manufactured by Miyota. It features subdials positioned at 2, 6, and 10 o'clock and serves as the base caliber for the Triwa Nevil collection in 42mm cases. As an external supplier movement, it provides chronograph functionality for brands without in-house movement development. The OS21 remains in production.
TECHNICAL SPECIFICATIONS
Movement Type
Quartz
Display Type
Analog
