{"product_id":"oriosa-ref-2789w-cal-eta-2789-mens-automatic","title":"Oriosa, Ref. 2789W, Cal. ETA 2789, Men’s Automatic","description":"\u003cp\u003eVintage Oriosa Automatic from 1976 is a Men’s Swiss Made automatic watch powered by the ETA 2789 caliber, pairing a blue sunburst dial with a framed day-date display, applied baton markers and visible 25 JEWELS and INCABLOC signatures. Offered for sale with a distinctive 1970s profile, it retains its original stainless steel multi-link bracelet.\u003c\/p\u003e\u003ch2\u003eOriosa 2789W — blue sunburst depth in a broad 1970s case\u003c\/h2\u003e\u003cp\u003eThe 36 mm case and 40 mm lug-to-lug measurement give this Oriosa compact vintage dimensions, yet the broad cushion-shaped body creates more visual presence than a conventional round dress watch of similar diameter. Its brushed upper surface, polished bezel and bracelet transition establish a distinctly 1970s profile. The blue dial shifts from slate to near-black as the light changes.\u003c\/p\u003e\u003ch3\u003eBlue sunburst dial with applied luminous-style batons\u003c\/h3\u003e\u003cp\u003eThe dial uses a radial sunburst finish with applied rectangular hour markers around a fine white minute track. Each marker carries a pale central insert, and the broad hour and minute hands use matching inserts. ORIOSA SWISS is printed below 12 o’clock, while AUTOMATIC, 25 JEWELS and INCABLOC appear in the lower half. T SWISS MADE T is visible at the outer edge.\u003c\/p\u003e\u003ch3\u003eFramed day-date aperture as the main complication\u003c\/h3\u003e\u003cp\u003eA large framed day-date display occupies 3 o’clock, giving the watch a practical period identity. Weekday and numerical date sit side by side inside a raised silver-tone frame and remain easy to read against the darker dial. A slender central seconds hand completes the display without competing with the broad hands or applied markers.\u003c\/p\u003e\u003ch2\u003eStainless steel case with brushed planes and polished accents\u003c\/h2\u003e\u003cp\u003eThe confirmed stainless steel case combines a broad brushed top with polished facets and a smooth circular bezel. This contrast emphasizes the geometry while keeping the dial opening clearly defined. Light age-related marks and normal surface wear are visible, but the brushed character remains clear. The short 40 mm overall length helps the broad case sit compactly on the wrist.\u003c\/p\u003e\u003ch3\u003eRidged crown and clean case-side proportions\u003c\/h3\u003e\u003cp\u003eA ridged crown at 3 o’clock provides practical grip for time and calendar adjustment. Its modest size preserves the balanced side profile. No crown signature is clearly visible in the supplied photographs, so no signed-crown claim is made.\u003c\/p\u003e\u003ch3\u003eOriginal multi-link stainless steel bracelet\u003c\/h3\u003e\u003cp\u003eThe stainless steel multi-link bracelet visually suits the period case architecture. Alternating broad and narrow links create a flexible articulated profile and continue the silver-tone palette. Because the watch is confirmed as All Original, the bracelet is presented as part of the original watch components. Its exact fitted wrist circumference is not supplied.\u003c\/p\u003e\u003ch2\u003eETA 2789 automatic movement with 25-jewel specification\u003c\/h2\u003e\u003cp\u003eThe confirmed ETA 2789 caliber provides automatic winding and powers the day-date display. The dial states 25 JEWELS and INCABLOC, allowing both details to be presented as confirmed features. The supplied data also identifies a frequency of 21,600 vibrations per hour. The watch is listed as serviced and fully operational, supporting practical ownership of this vintage Swiss automatic.\u003c\/p\u003e\u003ch2\u003e1976 Swiss styling with a practical day-date focus\u003c\/h2\u003e\u003cp\u003eDated to 1976, this Oriosa reflects the era’s preference for broad shaped cases, applied markers and useful calendar complications. The dark sunburst dial and framed day-date give it a sportier visual character than a conventional dress watch, while the 36 mm dimensions preserve classic proportions. Compare related pieces through our \u003ca href=\"\/collections\/oriosa-vintage-watches\"\u003eOriosa vintage watches with 1970s Swiss mechanical character\u003c\/a\u003e or browse \u003ca href=\"\/collections\/automatic-vintage-watches\"\u003eautomatic vintage watches with day-date functionality and period case design\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eServiced originality and present-day condition\u003c\/h2\u003e\u003cp\u003eThis Oriosa is confirmed as serviced, fully operational and fitted with all original watch components. The blue dial remains highly legible, with light aging visible on the hands and markers, while the stainless steel case and bracelet show normal signs of use. No box or papers are included. A 12-month warranty accompanies the watch.\u003c\/p\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOriosa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReference\u003c\/td\u003e\n\u003ctd\u003e2789W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eVery Good Vintage Condition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGender\u003c\/td\u003e\n\u003ctd\u003eMen’s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003eETA 2789\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduction Year\u003c\/td\u003e\n\u003ctd\u003e1976 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDial Color\u003c\/td\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Diameter\u003c\/td\u003e\n\u003ctd\u003e36 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLug to Lug\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLug Width\u003c\/td\u003e\n\u003ctd\u003e18 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMovement Type\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBox\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePapers\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFully Serviced\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFully Operational\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOriginal Watch Components\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Oriosa","offers":[{"title":"Default Title","offer_id":44494213251137,"sku":null,"price":390.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/2768\/1857\/files\/oriosa-ref-2789w-cal-eta-2789-mens-automatic.webp?v=1788035246","url":"https:\/\/www.vintagewatchstudio.com\/products\/oriosa-ref-2789w-cal-eta-2789-mens-automatic","provider":"Vintage Watch Studio","version":"1.0","type":"link"}