{"id":13955,"date":"2024-11-20T10:47:38","date_gmt":"2024-11-20T09:47:38","guid":{"rendered":"https:\/\/www.watchandvintage.fr\/?page_id=13955"},"modified":"2025-10-21T15:03:22","modified_gmt":"2025-10-21T13:03:22","slug":"longines-ultra-chron-1967-1974","status":"publish","type":"page","link":"https:\/\/www.watchandvintage.fr\/it\/storia-e-informazioni-sulle-gamme-di-orologi-piu-emblematiche\/longines-ultra-chrono-1967-1974","title":{"rendered":"Longines Ultra-Chron (1967-1974)"},"content":{"rendered":"
\"\"<\/figure>\n\n\n\n

Queste informazioni sono state raccolte principalmente attraverso la mia esperienza personale, da orologi che ho effettivamente avuto tra le mani. Riflettono ci\u00f2 che ho osservato e non rappresentano la verit\u00e0 assoluta. Pagina aggiornata il 20 novembre 2024.<\/em><\/p>\n\n\n\n

Testo e immagini: D. Broglin \u2013 Watch & Vintage<\/p>\n\n\n\n

<\/p>\n\n\n\n

L'Ultra-Chron \u00e8 stato introdotto nel 1967 per ospitare il movimento Longines 43x di nuova concezione. Questo calibro fu uno dei primi al mondo a raggiungere i 36.000 alternanze all'ora. Longines afferm\u00f2 che si trattava del movimento pi\u00f9 preciso sul mercato in quel momento. I primi modelli, e fino al 1968, erano tutti equipaggiati con il movimento 43x, mentre dal 1971 con il movimento 664x\/665x, simile al 43x ma con una frequenza di 28.800 alternanze all'ora.<\/strong>

<\/p>\n\n\n\n

Il design<\/h2>\n\n\n\n

Casi<\/h3>\n\n\n\n

La maggior parte dei modelli presentava casse a forma di tonneau, monoblocco o con fondello a vite. Tuttavia, erano presenti anche modelli pi\u00f9 tradizionali, di forma rotonda o a cuscino, una esagonale e una quadrata. Il diametro era piuttosto ridotto, da 34 a 37 mm. La corona recava la firma Longines. Le casse erano realizzate in acciaio inossidabile, oro 18 carati o semplicemente placcate in oro.<\/p>\n\n\n\n

Quadranti e lancette<\/h3>\n\n\n\n

In contrasto con la presunta modernit\u00e0 dei movimenti ad alta frequenza, il design dei quadranti era molto classico, con il logo Longines a ore 12 e il logo Ultra-Chron a ore 6. Anche i colori dei quadranti erano classici: argento, champagne o, pi\u00f9 raramente, nero o blu. La finestrella della data (cal. 431\/6651) poteva essere posizionata a ore 3 o a ore 4.<\/p>\n\n\n\n

Braccialetti \/ fasce<\/h3>\n\n\n\n

La maggior parte dei modelli era dotata di cinturino in pelle nera, ma erano disponibili anche bracciali in acciaio inossidabile. Questi ultimi erano di tipo milanese, con chiusura firmata Longines.
<\/p>\n\n\n\n

I movimenti <\/h2>\n\n\n\n

Per l'Ultra-Chron erano disponibili solo due movimenti: innanzitutto il 43x, declinato in diverse versioni, sempre con 17 rubini e 36.000 alternanze\/ora: 430 (secondi centrali), 431 (il pi\u00f9 comune, con datario), 432 (senza secondi), 433 (senza secondi, con datario). Alcuni modelli erano contrassegnati con la dicitura "Chronometer".
Successivamente, nel corso della produzione, il calibro 43x fu modificato per diventare il 664x e il 665x, con una frequenza di oscillazione inferiore (28.800 alternanze\/ora). Erano disponibili diverse versioni, con 17 rubini (6641, 6642) o 25 rubini (6651, 6652).
<\/p>\n\n\n\n

Alcuni esempi<\/h2>\n\n\n\n
\n
\n
\"\"
Ultra-Chron cal. 431, cassa tonneau classica, 1969<\/figcaption><\/figure>\n<\/div>\n\n\n\n
\n
\"\"
Ultra-Chron cal. 431 Cronometro, 1969<\/figcaption><\/figure>\n<\/div>\n\n\n\n
\n
\"\"
Ultra-Chron cal. 431, cassa rotonda ref. 8309, 1970<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

<\/p>\n\n\n\n

Successori, ristampa<\/h2>\n\n\n\n

A met\u00e0 degli anni '70, i movimenti al quarzo stavano per dominare il mercato e la maggior parte dei marchi invest\u00ec pi\u00f9 tempo e denaro in essi. L'Ultra-Chron e i suoi sofisticati movimenti furono abbandonati per un certo periodo. Solo nel 2022 Longines rilanci\u00f2 l'Ultra-Chron, nuovamente con un movimento a 36.000 alternanze\/ora (L836.6).<\/p>\n\n\n\n

Elenco di tutti i Longines Ultra-Chron (1967-1974)<\/strong><\/a><\/p>\n\n\n\n

Orologio Longines Ultra-Chron in vendita<\/h2>\n\n\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

I Seiko King erano orologi di alta gamma introdotti nel 1961<\/p>","protected":false},"author":1,"featured_media":13957,"parent":6918,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0,"footnotes":""},"class_list":["post-13955","page","type-page","status-publish","has-post-thumbnail","hentry","post","post-with-thumbnail","post-with-thumbnail-large"],"yoast_head":"\nLongines Ultra-Chron (1967-1974) history | Watch & Vintage<\/title>\n<meta name=\"description\" content=\"History and description of the Longines Ultra-Chron, 430, 431, 432, 433, 6641, 6642, 6641, 6652 movements. 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