The Seiko 5M62 calibre is a legendary workhorse in modern hybrid watch design. It delivers a highly dependable performance architecture that bridges the gap between mechanical and quartz engineering, utilizing a weighted mechanical automatic rotor to spin a micro-generator that stores clean electrical energy inside a rechargeable cell. It features standard hour, minute, and sweeping second hands alongside a sharp, quick-set date window display.

Because this calibre drives highly collectible enthusiast tool watches, most notably the iconic Seiko Prospex ''Kinetic Tuna'' and ''BFK'' (Big Freaking Kinetic) Diver series, clean factory replacement modules are in high demand. Over the years, thousands of original watches have suffered internal component failures or complete stator damage. This unused n.o.s movement, has good circuit tracks and brand-new mechanical winding gears, making it the perfect engine to fully restore an elite tool watch to factory specifications.

It includes the original temporary winding stem