Armin Strom Mirrored Force Resonance Manufacture Edition Blue Limited Edition ST22-RF.05 clearance Dial: Hand-brushed & sandblasted copper

Dial: Hand-brushed & sandblasted copper 'Salmon' color

Rotating unidirectional bezel

Grand Seiko's inaugural mechanical chronograph makes its long-awaited debut

20mm Suede leather with stainless steel pin buckle

Armin Strom Mirrored Force Resonance Manufacture Edition Blue Limited Edition ST22-RF.05 clearance Dial: Hand-brushed & sandblasted copperA milestone for independent watchmaking A micro mechanical revolution, the Mirrored Force Resonance in steel with a blue dial is the result of years of intensive research by Claude Greisler and the Armin Strom manufacture in incorporating the physical phenomenon of resonance in watchmaking for the ultimate chronometric stability. It works by means of the patented Resonance Clutch Spring, which directly connects and synchronizes the two hairsprings for