Naomi Uemura Commemorative Limited Edition Diver Limited edition of 1,200 Production serial number engraved on caseback Case diameter: 44 mm Manual and automatic winding capabilities Blue one-way rotating elapsed timing bezel Textured blue dial Date calendar LumiBrite hands and markers Screwdown crown and caseback Tri-fold push button release clasp with secure lock and extender Reinterpretation of the 1970 Diver's watch used by famed mountain climber the late Naomi Uemura, High torque 8L35 caliber automatic movement, hand-assembled at the Shizukuishi Watch Studio to withstand high-intensity diving conditions Deep blues of the dial, bezel and strap inspired by the skies over the mountains scaled on five continents during Uemura's daring expeditions