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This is a genuine Hattori second wheel, made in Japan, designed for the AL33 quartz movement. It is a key component of the movement’s gear train, transmitting power to the second hand for accurate timekeeping. This product is brand new and original, not a generic replacement part.
Brand：Hattori (by Seiko Time Corp.)
Compatible Movement：AL33 quartz movement (including AL33A variants)
Part Name：Second Wheel (Fourth Wheel & Pinion)
Origin：Made in Japan
Quality：Genuine original, brand new
Movement Size：10½ ligne (Ø23.3mm)
Movement Height：4.15mm
Battery：377
Function：Drives the second hand
1. Is this second wheel an original Hattori genuine part?
Yes. It is an original Hattori factory part, made in Japan.
2. What happens if the second wheel is worn or damaged?
A damaged second wheel can cause the second hand to stop, wobble, or jam, affecting time readability. As a continuously driven component in the gear train, timely replacement is recommended upon detecting any abnormality.
3. Does this part come with installation tools or instructions?
No. This is a single component. Professional tools are required; installation by a qualified watchmaker is recommended.
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