Citizen Original-Ersatzteil – Zugfeder (Mainspring / Aufzugsfeder, ぜんまい) – Größe 新中三 (1,45 × 0,110 × 335 mm) – NOS (1 Stück) Paaruhr The strap is made of

The strap is made of genuine calfskin (牛／カーフ) with a beautiful

Background on the product/series

Citizen pursued an independent

Super‑LumiNova® BGW9 ensures excellent readability at night

Citizen Original-Ersatzteil – Zugfeder (Mainspring / Aufzugsfeder, ぜんまい) – Größe 新中三 (1,45 × 0,110 × 335 mm) – NOS (1 Stück) Paaruhr The strap is made ofOriginal Citizen spare part mainspring (Japanese zenmai) from unused old stock (NOS). Offered is a single mainspring in original Citizen packaging with the historic "CITIZEN MAINSPRINGS" crest. The mainspring is the energy reservoir of the mechanical movement: coiled in the barrel (), it is wound via the crown and, by unwinding, drives the entire gear train. As a central power source and wear part, it fatigues over time, can take a permanent set, or