Seiko Original Replacement Part – Dial Screw (文字板止捻) – Movement Type 10型U – Seiko Watch Parts NOS – Price per piece

Original Seiko spare part – 文字板止捻（もじばんとめねじ）/ Dial Screw for Seiko movements of type "10型U", from unused old stock (NOS). One single piece is offered, taken from an original, sealed "SEIKO" dealer bag (imprint "10型U", "文字板止捻", "12 pcs."; original packaging 1 dozen).

The dial screw fixes the dial (文字板, dial) to the movement: it clamps the dial feet sideways in the movement plate, thus securing the firm, anti-rotation fit of the dial. A small but indispensable part that can easily be lost during overhaul or dial change – a genuine, suitable replacement part is therefore sought after.

The inscription "10型U" refers to the Seiko movement type for which the screws are intended (型 = type/size). Original NOS small parts for early Seiko movements are becoming increasingly rare, which makes sealed original packaging particularly attractive for watchmakers and collectors.

The part is unused and in very good original condition (sealed original bag); due to storage, only minor, purely visual traces may be present, which do not affect the function.

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
Dial screws are movement/caliber specific (thread, length, head shape). Before installation, please compare dimensions and fit with the target caliber; assembly should be carried out professionally.