{"id":25098,"date":"2021-12-07T13:56:40","date_gmt":"2021-12-07T12:56:40","guid":{"rendered":"https:\/\/master-watch-parts.com\/product\/aufzugfeder-junghans-88-j88-mainspring-j88-j99-j98-j79s-j47-j41-j30bz-j29a\/"},"modified":"2026-10-13T07:52:46","modified_gmt":"2026-10-13T05:52:46","slug":"junghans-88-junghans-astra-junghans-47-junghans-73-junghans-93-aufzugfeder","status":"publish","type":"product","link":"https:\/\/master-watch-parts.com\/en\/product\/mainspring-for-junghans-88-j88-j99-j98-j79s-j47-j41-j30bz-j29a\/","title":{"rendered":"Mainspring for Junghans 88, J88, J99, J98, J79S, J47, J41, J30BZ, J29a"},"content":{"rendered":"

Scope of delivery<\/a>:<\/h2>\n

1x mainspring for a Junghans movement of your choice (see drop-down menu or below)<\/h3>\n

All springs offered here are secured either with a ring or with a wire, except J80<\/h3>\n

Photos are examples only (only of mainsprings for Junghans 88)<\/h3>\n

* Junghans 99, J99: measured approx. 1.38 x \u00d87.45 mm<\/h3>\n

* Junghans 98, J98: measured approx. 1.70 x \u00d89.95 mm<\/h3>\n

Mainspring for Junghans movements J88, J99, J98, J79S, J47, J41, J30BZ and J29a, secured with a ring or wire. Very good quality, choose your caliber.<\/p>\n

* Junghans 88, J88, Nivaflex: measured approx. 1.50 x \u00d812.5 mm<\/p>\n

* Junghans 88, J88: measured approx. 1.50 x \u00d812.5 mm<\/h3>\n

* Junghans 80, J80: not secured – loose – spring must be installed into the barrel<\/p>\n

* Junghans 79\/S, J79\/S: measured approx. 1.45 x \u00d85.8 mm<\/h3>\n

* Junghans 47, J47: measured approx. 2.0 x \u00d816.95 mm<\/h3>\n

* Junghans 41, Junghans 42, J41, J42: measured approx. 1.5 x \u00d816.7-\u00d816.85 mm<\/h3>\n

* Junghans 36, J36: measured approx. 2.60 x \u00d816.4 mm. Spring must be installed into the barrel<\/h3>\n

* Junghans 36, J36: complete barrel: mainspring + barrel arbor + barrel. Spring must be installed into the barrel<\/p>\n

* Junghans 30bz, J30bz: measured approx. 3.90 x \u00d819.6 mm<\/h3>\n

* Junghans 29a, J29a: measured approx. 2.10 mm: The wire fixation is out of round. Spring must be installed into the barrel!<\/h3>\n

* Junghans 24, J24: measured approx. 1.80 x \u00d820.4 mm<\/h3>\n

* Junghans Astra, JAstra: approx. 2.1 x \u00d8(19.80-20.0 mm) x 0.20 x 840<\/h3>\n

Very good quality<\/strong><\/p>\n

Junghans 88<\/h3>\n","protected":false},"excerpt":{"rendered":"

Find the exact mainspring for your Junghans caliber. Whether J88, J99, J47 or J30BZ, we offer high-quality springs, some secured with a ring or wire, for a reliable repair of your manual-winding movement.<\/p>\n","protected":false},"featured_media":25099,"template":"","meta":[],"product_brand":[],"product_cat":[93,190],"product_tag":[],"class_list":["post-25098","product","type-product","status-publish","has-post-thumbnail","product_cat-junghans","product_cat-junghans-uhrenteile","first","instock","taxable","shipping-taxable","purchasable","product-type-variable","has-default-attributes","has-product-safety-information"],"_links":{"self":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product\/25098","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/media\/25099"}],"wp:attachment":[{"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/media?parent=25098"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_brand?post=25098"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_cat?post=25098"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/master-watch-parts.com\/en\/wp-json\/wp\/v2\/product_tag?post=25098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}