{"product_id":"seiko-ersatzteil-unruhwelle-テン真-balance-staff-fur-seiko-solar-kal-5s-auch-venus-lady-1-stuck-nos","title":"Seiko Spare Part – Balance Staff (テン真 \/ Balance Staff) for Seiko \"Solar\" (Cal. 5S) – also Venus \/ Lady (1 piece) – NOS","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eOriginal \u003cstrong\u003eSeiko Balance Staff (テン真 \/ Balance Staff)\u003c\/strong\u003e from unused old stock (NOS) for the \u003cstrong\u003eSeiko “Solar” (ソーラー)\u003c\/strong\u003e – Caliber family \u003cstrong\u003e5S\u003c\/strong\u003e. \u003cstrong\u003eA single piece\u003c\/strong\u003e is offered, taken from an original “SEIKO WATCH PARTS” package (“12 pcs.”).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe balance staff is one of the central and most stressed components of the movement: It carries the balance wheel with hairspring, and its fine pivots run in the (cap) jewels. A broken or worn balance staff is a common reason for overhaul – original NOS staffs are therefore particularly sought after.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eModel compatibility: According to the watchmaker's note on the original collection box, the same balance staff is also used for the \u003cstrong\u003eSeiko \"Venus\"\u003c\/strong\u003e (mechanical ladies' model of the 1960s\/70s) and the \u003cstrong\u003eLady (Seiko)\u003c\/strong\u003e. Seiko often used common parts for its small or ladies' calibers – the staff is therefore suitable for several of these models (please compare measurements before installation).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eImportant note on model designation: \"Solar\" refers to the \u003cstrong\u003emechanical vintage Seiko \"Solar\"\u003c\/strong\u003e from the 1950s\/1960s (caliber 5S) – \u003cstrong\u003enot\u003c\/strong\u003e a modern, light-powered solar watch.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe part is unused; due to storage, minor, purely cosmetic traces are possible, which do not impair the function.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNote on assignment: Before installation, please compare the staff dimensions (pivot diameter, overall height, plate\/roller seat) with the required balance staff or caliber.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eManufacturer: Seiko (K. Hattori \u0026amp; Co., Japan).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-pre-wrap leading-[1.7]\"\u003eWarranty (used) This is an original part (NOS) stored for decades. The limitation period for claims for defects (statutory warranty) is 12 months from delivery.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-pre-wrap leading-[1.7]\"\u003eNote Before installation, please compare the staff dimensions and fit with the required balance staff; assembly should be carried out professionally.\u003c\/p\u003e","brand":"Vintage \u0026 JDM (Japan Domestic Market)","offers":[{"title":"Default Title","offer_id":53676282937682,"sku":null,"price":16.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/3908\/0530\/files\/81D4A26D-E8DC-4F88-BC80-AFB4383E2999.jpg?v=1780855906","url":"https:\/\/japanese-microbrands.com\/en\/products\/seiko-ersatzteil-unruhwelle-%e3%83%86%e3%83%b3%e7%9c%9f-balance-staff-fur-seiko-solar-kal-5s-auch-venus-lady-1-stuck-nos","provider":"Japanese Microbrands - Mario Lenke","version":"1.0","type":"link"}