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The Hattori YM12A is a genuine Japanese-made 1/5-second chronograph movement known for its accuracy, durability, and long battery life. Ideal for professional watchmakers and OEM production, it delivers long-lasting performance and refined timing precision. 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：YM12A
Origin：Made in Japan
Movement Size：12 ligne (27.60mm)
Movement Height：4.34mm
Chronograph Precision：1/5 second
Battery：SR927SW
Battery Life：Approx. 5 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.
2. What is the chronograph precision of this movement?
The YM12A features 1/5 second chronograph precision. The movement height is 4.34mm, measuring 12 ligne (27.60mm), suitable for medium-thickness case designs.
3. What is the difference between YM12A and YM14A?
Both share the same dimensions and precision (12 ligne, 4.34mm, 1/5 second). The YM12A is an upgraded version of the YM14A, with optimized circuit design and energy efficiency.
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Extensive Selection – More than 3,000 watch movements, parts and accessories available.
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