Citizen Original-Ersatzteil – Zugfeder (Mainspring / Aufzugsfeder, ぜんまい) – Größe 8 ¾''' (1,40 × 0,085 × 245 mm) – NOS (1 Stück) Paaruhr the watch industry stood at

the watch industry stood at a turning point: the traditional mechanical watch was increasingly challenged by electronic developments

but a King Seiko was still too expensive

Despite its minimal profile

– Kaliber 4R35

Ein gesuchtes Originalteil – interessant für zwei Sammlergruppen: Seiko-Restauratoren und Liebhaber vintage Designer-/Modemarken-Uhren (Nina Ricci)

Citizen Original-Ersatzteil – Zugfeder (Mainspring / Aufzugsfeder, ぜんまい) – Größe 8 ¾''' (1,40 × 0,085 × 245 mm) – NOS (1 Stück) Paaruhr the watch industry stood atOriginal Citizen spare part mainspring (Japanese zenmai) from unused old stock (NOS). Offered is a single mainspring in original Citizen packaging with the historical "CITIZEN MAINSPRINGS" emblem. The mainspring is the energy reservoir of the mechanical movement: wound in the barrel (), it is tensioned via the crown and drives the entire gear train as it unwinds. As a central power source and wear part, it fatigues over time, can take a permanent set,