{"product_id":"1940-gruen-pan-am-ace","title":"1940 Gruen Pan Am 'ACE'","description":"\u003cp\u003e\u003cem\u003eEach vintage watch is inspected and in good working order. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIntroduced in late 1945 following Gruen’s wartime marketing campaign centered around Pan American World Airways Clipper pilots, the \"Ace\" was one of the most prominent models in the popular civilian Pan Am series. Designed with a distinct aviation and military influence, it features a dual-tone dial with a 24-hour inner chapter track and a signature red central sweep seconds hand. The watch is cased in a 10K gold-filled with characteristic winged\/contoured lugs and houses the reliable, slim-profile Veri-Thin 420SS manual-wind caliber.\u003c\/p\u003e\n\u003cp\u003eMaker: Gruen \u003cbr\u003eModel: Pan Am (Veri-Thin Precision)\u003cbr\u003eReference: Style Ref. 420SS-435 \u003cbr\u003eYear of Production: 1945-48 \u003cbr\u003eCase dimensions: 32 mm diameter (excluding crown) × 37 mm to 39 mm lug-to-lug, ~10 mm thick\u003cbr\u003eCase Material: 10kt gold filled\u003cbr\u003eMovement: Manually wound \u003cbr\u003eCaliber: Gruen Caliber 420SS (17 Jewels, central sweep seconds) \u003cbr\u003ePower reserve: 38-40 hours \u003cbr\u003eBracelet\/Strap: leather \u003cbr\u003eLug Width: 16mm \u003cbr\u003eOriginal Box\/Papers: none \u003cbr\u003e\u003cbr\u003e\u003cem\u003ePlease contact us for an insured shipping quote.\u003c\/em\u003e\u003c\/p\u003e","brand":"Vintage","offers":[{"title":"Default Title","offer_id":50493230350554,"sku":null,"price":633.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1579\/8059\/files\/verihin-panam1.jpg?v=1790189867","url":"https:\/\/clarkstreetmercantile.com\/en-us\/products\/1940-gruen-pan-am-ace","provider":"Clark Street Mercantile","version":"1.0","type":"link"}