Orient 100 Year Calendar Automatic Japanese Made Watch

With a solid stainless-steel 42mm case , and a lovely original chestnut dial, under a new crystal , a smart and very unusual watch, Orient 46941 Movement runs to time - Bracelet is comfortable on my 7.5" wrist. Case 37mmx42mm 
The 46941 movement, made in-house by Orient since 1971, runs at 21,600 bph/6 'ticks' per second and evolved from the related Seiko 7006 movement. Orient 46941 movements are extremely robust and reliable due to many decades of refinements, although it is not possible to hand wind these movements with the winding stem if not worn for some time in common with other affordable watch ranges - they rely solely on kinetic energy.
The Orient Multi-Year Calendar (often colloquially called the "100-Year Calendar" or "College" watch) is an iconic, highly collectable Japanese timepiece first introduced in 1965. Instead of using a complex digital or digital-mechanical electronic perpetual mechanism, it utilizes a clever, purely mechanical multi-year wheel to display days, months, and years simultaneously.