Original Seiko spare part – setting lever screw (押鳥捻) for the Seiko "Solar" (ソーラー), from unused old stock (NOS) (1 piece)

This is a single piece, taken from an original "Seiko Watch Parts" dealer bag (printed with "[Identification according to bag] (ソーラー)" and "押鳥捻").

The setting lever screw secures the setting lever (押鳥 / おしどり, setting lever) in the keyless works. In movements with screw-type setting levers, this specific screw is loosened to release the winding stem and remove the crown. A small but essential fastening part; it is often lost during revision or the thread is damaged – a genuine, suitable replacement part is therefore sought after.

According to the movement imprint, the designation "Solar" (ソーラー) refers to an early, mechanical Seiko model – not to the modern, solar-powered Seiko quartz watches (from 1977). Original spare parts for these early Seikos are rarely available today, which makes the part particularly relevant for watchmakers and collectors.

The part is unused and in very good original condition; minor, purely cosmetic storage marks are possible, but do not affect functionality.

Manufacturer: Seiko (K. Hattori & Co. / Seikosha, 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
Setting lever screws are caliber-specific (thread diameter/pitch, length, head shape). Before installation, please compare the dimensions and fit with the target caliber or setting lever; installation should be carried out professionally.