{"product_id":"glycine-1970s-vacuum-high-frequency-38mm","title":"Glycine - 1970s Vacuum High Frequency 38mm","description":"\u003cp\u003eWHAT WE LOVE:\u003c\/p\u003e\n\u003cp\u003eThe Glycine Vacuum is one of the great unsung achievements of mid-twentieth century Swiss watchmaking — and the story behind it is as interesting as the watch itself. In the early 1960s, Glycine salesman Hans Ulrich Klingenberg had the idea of evacuating the air from inside a watch case: removing dust, moisture, oxygen, and contaminants entirely, so that the lubricating oils inside could never degrade through oxidation or contamination. The resulting watch — sealed against the ingress of air molecules far smaller than water molecules — required extraordinary case gasket quality to hold the vacuum, and the Magdeburg hemispheres logo that identifies every genuine Vacuum watch references a seventeenth-century physics experiment that demonstrated the power of atmospheric pressure. To hold a vacuum against that pressure is a genuine engineering achievement.\u003c\/p\u003e\n\u003cp\u003eThis 1970s Vacuum High Frequency pairs that case technology with a high-beat ETA 2728 movement beating at 28,800 vibrations per hour — the \"High Frequency\" designation reflecting the elevated beat rate that was, in the early 1970s, considered the frontier of mechanical timekeeping precision. The gold-tone case has the bold, assertive 1970s case architecture that this era of Swiss watchmaking produced with real confidence, and the white dial with its applied gold-tone indices and day-date display at 3 o'clock reads cleanly and immediately. This is a genuinely unusual and historically interesting watch from a brand that very few collectors have properly discovered.\u003c\/p\u003e\n\u003cp\u003eWHAT'S INSIDE:\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe movement is the ETA Calibre 2728 — a 28,800 vph (8 beats per second) automatic with Incabloc shock protection, driving hours, minutes, sweep seconds, day and date. The Vacuum case sealing system requires specialist knowledge to open correctly — the bezel clamps at 12 and 6 o'clock are the identifying markers of genuine Vacuum construction.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"s1\"\u003eFIVEFORTYFIVE SIX MONTHS \u003c\/span\u003e\u003cspan class=\"s2\" style=\"color: rgb(255, 42, 0);\"\u003eWARRANTY\u003c\/span\u003e\u003c\/p\u003e","brand":"Glycine","offers":[{"title":"Default Title","offer_id":54092819038481,"sku":"24750","price":1750.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0072\/5332\/7960\/files\/Glycine-1970s-Vacuum-High-Frequency-38mm247501-7.jpg?v=1786146890","url":"https:\/\/fivefortyfive.nz\/products\/glycine-1970s-vacuum-high-frequency-38mm","provider":"FiveFortyFive","version":"1.0","type":"link"}