ETA/UNITAS 6422,6423 6427,6428 Swiss Movement Date Jumper spring Part No. 2575, Swiss Watch.

ETA 6422 Date Jumper SpringThe ETA 6422 Date Jumper Spring is a genuine Swiss replacement component manufactured specifically for ETA/UNITAS 6422, 6423, 6427, and 6428 manual wind movements. According to the official ETA/UNITAS spare parts catalogue, Part No. 2575 is the Date Jumper Spring, an essential component of the calendar mechanism that provides the spring tension required to position and retain the date indicator correctly after each daily date change.Manufactured to original Swiss factory specifications, the ETA 6422 Date Jumper Spring is engineered from high-quality spring steel to deliver consistent tension, excellent fatigue resistance, and long-lasting mechanical reliability. Every genuine ETA/UNITAS component is produced with strict dimensional tolerances, ensuring perfect compatibility with the original movement and dependable calendar performance.The calendar mechanism of a mechanical watch depends on several precision components working together to advance the date once every twenty-four hours. The ETA 6422 Date Jumper Spring applies controlled pressure to the date jumper, allowing the date wheel to index accurately and remain securely aligned with the dial window after every date change. Proper spring tension is critical for smooth, precise, and reliable calendar operation.A weakened, bent, or damaged ETA 6422 Date Jumper Spring may result in incomplete date changes, incorrect date alignment, skipped dates, or excessive play in the date wheel. Replacing the original spring with a genuine Swiss replacement restores the correct operating pressure and helps return the calendar mechanism to factory performance.Professional watchmakers choose genuine ETA/UNITAS replacement parts because the calendar system requires precise spring tension and exact dimensional accuracy. The ETA 6422 Date Jumper Spring is manufactured using premium Swiss spring steel that maintains consistent elasticity even after years of operation. Its factory-quality construction minimizes wear on surrounding components while ensuring reliable engagement of the date mechanism.The ETA/UNITAS 6422 family of movements has long been respected for its robust construction and dependable calendar performance. Maintaining these calibers with authentic components such as the ETA 6422 Date Jumper Spring helps preserve their originality, mechanical integrity, and long-term collector value. Genuine replacement parts also eliminate compatibility problems commonly associated with aftermarket alternatives.Whether performing preventive maintenance, rebuilding the calendar mechanism, or restoring a vintage Swiss watch, the ETA 6422 Date Jumper Spring delivers the precision, durability, and quality expected from genuine Swiss watch parts. Its accurate spring force, factory specifications, and reliable performance make it the preferred choice for professional watchmakers, restoration specialists, and collectors seeking authentic ETA/UNITAS spare parts.Technical SpecificationsBrand: ETA / UNITASCompatible Calibers: 6422, 6423, 6427, 6428Part Name: Date Jumper SpringPart Number: 2575Movement Type: Manual WindSwiss MadeGenuine Swiss Replacement PartCondition: NOS (New Old Stock)FeaturesGenuine ETA / UNITAS partOriginal Swiss Made componentDate Jumper Spring Part No. 2575Precision heat-treated spring steelAccurate factory dimensionsReliable calendar operationSmooth date indexingProfessional repair qualityIdeal for vintage movement restorationLong service lifeFunction and PurposeThe ETA 6422 Date Jumper Spring applies the correct tension to the date jumper, allowing the date wheel to index accurately and remain securely positioned after each date change. It plays a critical role in maintaining smooth, reliable, and precise calendar operation.CompatibilityCompatible with:ETA/UNITAS 6422ETA/UNITAS 6423ETA/UNITAS 6427ETA/UNITAS 6428Please compare your movement caliber and original part number before purchasing.Professional UseThe ETA 6422 Date Jumper Spring is recommended for professional watchmakers, restoration specialists, collectors, and repair workshops servicing ETA/UNITAS 6422, 6423, 6427, and 6428 manual wind movements.Build QualityManufactured to genuine Swiss standards, the ETA 6422 Date Jumper Spring features precision-formed spring steel, excellent elasticity, and accurate factory tolerances, ensuring dependable operation of the calendar mechanism.Long-Term ReliabilityWhen professionally installed, the ETA 6422 Date Jumper Spring restores proper date indexing, maintains consistent spring pressure, and preserves the original reliability of the ETA/UNITAS calendar mechanism for years of dependable service.Frequently Asked QuestionsIs the ETA 6422 Date Jumper Spring a genuine Swiss part?Yes. The ETA 6422 Date Jumper Spring Part No. 2575 is a genuine Swiss replacement component manufactured for ETA/UNITAS 6422, 6423, 6427, and 6428 manual wind movements.What is the function of the ETA 6422 Date Jumper Spring?The ETA 6422 Date Jumper Spring provides the spring tension required for the date jumper to position and hold the date wheel accurately during each daily calendar change.Shipping & Delivery�� Phone & WhatsApp: 20 122 323 9604�� Email: [email protected]�� Email: [email protected]�� Website: www.swisswh.com�� Facebook Page: https://www.facebook.com/WatchHouseSparePartsWe offer worldwide shipping via DHL and UPS. All orders are carefully packed and dispatched within 1–2 business days. Delivery typically takes 3–7 business days depending on the destination country and customs procedures.