Seiko winding stem (1 piece) – Part 354042 – for Seiko 4302 / 4303 / 4316 / 4326 / 4335 / 4336 NOS

Original Seiko winding stem for various early Seiko 4300 series automatic calibers. Unused NOS spare part .

Details:
• Part number: 354042
• Name: Winding stem
• Compatible works:
– 4302
– 4303
– 4316
– 4326
– 4335
– 4336
• Design: One-piece shaft
• Material: Steel
• Condition: NOS – unused
• Scope of delivery: 1 piece

Suitable watch models (examples):
Seiko Sportsmatic , Seiko 5 , and various Seiko automatic models from the 1970s with caliber 43xx.

Technical function:
Transmission of the crown rotation to the hand-setting and winding mechanism of the clockwork.

Note for watchmakers:
Original winding stems for the 43xx caliber family are difficult to obtain , especially in NOS (New Old Stock) condition. An ideal replacement for restoration projects.