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This is a genuine Hattori Y121 quartz movement, made in Japan, measuring 6¾ × 8 ligne (15.30 × 17.80mm) with 2.99mm height. It features a three-hand display (hour/minute/second) with approximately 3 years of battery life using an SR626SW battery. This product is brand new and genuine, supplied in SOFLY packaging, with winding stem included, battery NOT included.
Brand：Hattori (by Seiko Time Corp./S. Epson)
Model：Y121
Origin：Made in Japan
Movement Size：6¾ × 8 ligne (15.30 × 17.80mm)
Movement Height：2.99mm
Functions：Three-hand display (hour/minute/second)
Battery：SR626SW
Battery Life：Approx. 3 years
Packaging：SOFLY packaging
Included：Winding stem included / Battery NOT included
Quality：Genuine original, brand new
1. Is this movement an original Hattori genuine part?
Yes. It is an original Hattori factory movement, made in Japan, manufactured by S. Epson Corp., a Seiko Group company. The Y121 is interchangeable with Seiko 7N01 and equivalent calibers.
2. Which watch models is this movement suitable for?
The Y121 is a 6¾×8 ligne three-hand movement (no date), suitable for ladies’ watches and small-to-medium watch designs.
3. Does this movement come with installation tools or instructions?
No. This is a precision component. Installation involves dial, hand, and case assembly—requiring professional tools. Work should be performed by a qualified watchmaker.
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