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SEIKO (SII) NH05/06/15/16 Winding Stem — genuine winding stem compatible with Seiko NH05, NH06, NH15, and NH16 automatic movements. Made in Japan by Seiko (SII), provides reliable connection between the crown and movement for manual winding and time setting. Essential replacement part for Seiko NH series movement service. Brand new.
| Parameter | Value |
|---|---|
| Brand | SEIKO (SII) |
| Product | Winding Stem |
| Compatible Calibers | NH05, NH06, NH15, NH16 |
| Movement Type | Automatic |
| Origin | Made in Japan |
| Type | Genuine Seiko Part |
| Condition | Brand New |
Q1: Is this a genuine Seiko part?
A: Yes — this is a genuine SEIKO (SII) winding stem, Made in Japan. It is an original Seiko factory part, not an aftermarket replacement.
Q2: What Seiko movements does this fit?
A: This winding stem is compatible with Seiko NH series automatic movements: NH05, NH06, NH15, and NH16. These are popular automatic calibers used in many Seiko watches and also sold as standalone movements for custom builds.
Q3: What is a winding stem?
A: The winding stem (also called crown stem) is the metal shaft that connects the crown to the movement. When you pull the crown or turn it, the winding stem transmits that motion to the movement for manual winding, time setting, and date adjustment. It is a critical component in the crown-movement interface.
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