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This is a genuine Hattori winding stem for the VX00/VX01 movements, made in Japan. The VX00 is a 5×6 ligne (13.00×15.15mm), 2.19mm thick two-hand caliber; the VX01 is a 4¾×6 ligne (10.80×13.75mm), 2.39mm thick three-hand caliber. This product is brand new and original, featuring Tap 6 (0.6mm) specification, and typically requires cutting to case length during installation.
Compatible Movements：VX00, VX01 (also compatible with YL60, YL61, 1F20, 1N00, 1N01)
Origin：Made in Japan
Quality：Genuine original, brand new
Thread Spec：Tap 6（0.6mm）
1. Is this winding stem an original Hattori/Seiko genuine part?
Yes. It is an original Seiko factory part, made in Japan.
2. Which movements is this stem compatible with?
It fits Hattori VX00, VX01 ultra-small quartz calibers, also compatible with YL60, YL61, 1F20, 1N00, 1N01 series. Check the caliber marking on your movement main plate for verification.
3. What is the main difference between VX00 and VX01?
VX00 is a two-hand movement (hour/minute), 5×6 ligne, 2.19mm thick; VX01 is a three-hand movement (hour/minute/second), 4¾×6 ligne, 2.39mm thick. Both share the same Tap 6 stem specification.
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