Original Ricoh Watch winding stem from unused old stock (NOS). The packaging bears the name巻真（まきしん） – winding stem and the noteオートマツ（オートマチック） – automatic movement .
This winding stem is compatible with various Ricoh automatic movements from the 1960s and 1970s. Due to the limited availability of original Ricoh parts, it is particularly valuable to watchmakers and collectors.
Technical data: • Length: 17 mm • Thread diameter: 0.70 mm • Design: Automatic winding shaft • Condition: NOS (unused, long storage)
