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ABOUT MECHANICAL WATCHES
BEFORE USING THIS WATCH
A mechanical watch keeps its accuracy best when its mainspring is sufficiently wound.
We recommend seeking the assistance of an experienced watch technician for sizing of
your watch. If adjustment is not done correctly, the bracelet may unexpectedly become
detached leading to loss of your watch or injury. Consult the shop where you purchased
the watch. In the event that you have moved or have received your watch as a gift, and
after-sales-support of the retailer is not available, please consult the authorized service
center.
Be sure to remove any protective stickers that may be on your watch (case back, band,
clasp, etc.). Otherwise, perspiration or moisture may enter the gaps between the protective
stickers and the parts, which may result in a skin rash and/or corrosion of the metal parts.
Accuracy of a mechanical watch varies affected by gravity. The accuracy varies as the result
that the watch may take various attitude while worn and gravitate to a different direction
every moment.
Metal parts are used for the part for keeping accuracy in a mechanical watch. The accuracy
varies affected by their thermal expansion and contraction and change of physical
characteristics of a spring owing to temperature variation.
The mechanical watch may be magnetized once it is placed near magnetism. Magnetism
remains in the watch even after it is distanced from the source of magnetism and may
degrade the watch accuracy. In that case, the watch needs to be repaired. Please beware not
to place your watch near magnetism.
Smartphone / Television / Portable music player / Audio speaker / Headphone / Notebook PC
Magnetic health device / Coded electric shaver / Handbag clasp / Refrigerator door (magnetic) etc.
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The watch is strongly affected by magnetism when they are in close contact; however, when the
watch is distant around 5cm away from the source of magnetism, it is almost not affected by it at all.
Accuracy of a mechanical watch is owing to evenness of rotation of the balance. Strong
shocks and continuous shocks strongly affect movement of the balance and give very bad
effect to accuracy of it. Strong shocks may even deform or break the balance. Take care not
to drop the watch and not to play sports which may give strong shocks to your wrist such as
golf or tennis.
The accuracy of a mechanical watch in this instruction manual is static accuracy. Accuracy
of a mechanical watch may not be kept within a normal accuracy range due to using
conditions such as below.
Winding amount of the mainspring
Band adjustment
Protective stickers
Posture of the watch
Temperature
Magnetism
Impact and others