Pay attention not to touch and scratch the surface of the solar cell.

Keep the transparency rate of the dial more than 20%. (Effective aperture is φ27mm)
Each elements of solar cell must be kept the transparency rate.

Please set the exclusive secondary battery unit.
(The secondary battery is Lithium metal batteries without any environmentally harmful substances.)
Please install the minus part of the secondary battery towards inside of the watch. If the silver oxide battery is accidentally set and charged, there is a possibility of battery explosion.
To prevent from the battery explosion, it is adopted safety structure not to charge the silver oxide battery even if it is accidentally set.
Install the secondary battery unit under the circuit block cover as illustrated below A and B. Cal. VR42B Attention-01 Rev. : C (Approx. Minutes) Illumination (Lx) Source of light Environment A (Approx . Hours) B (Approx . Hours) A (Approx . Hours) Dial transparency rate = 20% Dial transparency rate = 30% 02 4/Aug./'23 Check whether the secondary battery lead plate is surely connected to minus terminal. (Refer to the Fig.[2])

When removing the setting stem,put the setting stem at normal position and push the ''setting lever'' by tweezers. (Refer to the Fig.[3].)
The ''setting lever'' can not be push if the setting stem is not at normal position.

Use the specified holding ring for dial to prevent rotation of the movement inside of the case in order to stabilize the button operation.
Refer to the [Solar cell unit] page instruction as to the shape and tolerance.
Use the metal case to prevent from the movement malfunction by static electricity.

Each hand moves at step interval. Set the each hand at correct position according to the scale on the dial in order not to make a mistake in reading time. Do not turn the hand forcibly.

When removing the hands, use exclusive fork-shaped tools.
Do not remove the dial under the condition that any hands are set.
When set and remove the hour hand repeatedly, it may reduce the hand fixing torque because the hour wheel is made by plastic.To ensure the enough fixing torque, it isn't recommended to re-assemble the hour hand more than five times.(Type M only)

When charging the watch, do not place it too close to fluorescent lamp or other light sources as the watch temperature will become extremely high, causing damage to the parts inside the watch.

Please set 2pcs of solar cell lead terminals in accordance with this illustration. As to the solar cell lead terminal shape, there is no distinction between upper and lower.

Push above part of each hook on the solar cell unit into main plate certainly.

The dial is held by the four guide poles on the solar cell unit.

Please keep the clearance between the movement and the tip of button to prevent the interference in assembling and enable to be cased smoothly.