Watch John Harrison Silver [John Harrison] JH-071BK Men's

●Move/Solar photovoltaic power generation + radio wave reception ●Solar cell panel/Uses Japanese photovoltaic panels, no need to replace batteries. ●Functions/Radio wave reception (scheduled reception, reset reception, forced reception, sleep function, perpetual calendar function) ●Received radio waves/Fukushima transmitting station 40KHz, Saga transmitting station 60KHz, automatic channel selection reception for both stations (up to 3 times a day) ●Daily life waterproofing (3 ATM waterproof) ●Monthly difference/±30 seconds (when not receiving radio waves) "Product size" ●Length 5.2 x Width 4.5 (diameter 4.3) x Thickness 1.4cm, ●Arm circumference length: 14-21cm (sliding type) ●Weight: Approx. 133g