WK ( Cal. VS21 )

About the Product

Features

This product is a solar-charged watch. (Solar-Powered/Light Charge)

  • The light received by the solar cell is converted into electrical energy to power the watch.

Names and Functions of Individual Component Parts

A Hour hand
B Minute hand
C Second hand
D Crown
0 0 click: Normal position
1 1st click: Time setting (second hand halt mechanism)
E Dial
  • The solar cell is located below the dial.
  • The design of the dial and position of the crown may differ depending on the model.

Specifications

Drive system Stepper motor
Crystal frequency 32,768 Hz (oscillations per second)
Wearing accuracy (average monthly deviation) ±20 seconds *1
Watch display Hours, minutes, and seconds (hand movement in 1-second intervals)
Additional functions Energy depletion warning function
Overcharging prevention mechanism
Operating temperature range -5°C to +50°C
Batteries used 1 secondary battery
Operation duration from full charge Approx. 6 months
Water resistance *2
  1. When worn on the arm at 5°C to 35°C.

  2. The water resistance performance is indicated on the case back.
    A watch with WATER RESISTANT indicated on it has enhanced water resistance performance.
    > "For Safe Use > Precautions Regarding Water Resistance" (opens new window)

  • Product specifications are subject to change without notice for improvement.