Seiko Spare Part 012609 (1 piece) – Click Screw for Seiko 90 Stopwatch / 91 Railway Watch (Cal. 9011N / 9119A) – NOS

Original Seiko click screw with part number 012609 (Japanese コハゼネジ) from new old stock (NOS). One single piece is offered.

The click screw fixes the click (こはぜ / pawl), which locks the ratchet wheel and thus prevents the mainspring from unwinding.

Usage: Seiko calibers 9011N and 9119A – the movements of the Seiko "90" stopwatch and the Seiko "91" Railway Timer. Original spare parts for this stopwatch/railway clock family are difficult to obtain today and are therefore particularly relevant for watchmakers and collectors.

The part is unused; minor, purely cosmetic traces due to storage may be present, but do not affect the function.

Manufacturer: Seiko (K. Hattori & Co., Japan).

Warranty (used) This is an original part (NOS) stored for decades. The limitation period for claims for defects (statutory warranty) is 12 months from delivery.

Note Before installation, please compare the thread, dimensions, and fit with the required click screw; installation should be carried out professionally.