{"product_id":"vintage-hamilton-pacer-rockford-electric-watch","title":"Vintage Hamilton Electric Pacer \"Rockford Screw Products 25\" Dial \u0026 10K Gold Filled - In Original Box","description":"\u003ch2\u003eWatch Overview\u003c\/h2\u003e\n\u003cp\u003eThe Hamilton Pacer is one of the most recognizable models from the golden age of Hamilton Electric watches. Produced from 1957 to 1969, it was the only electric model to span the entire production run, making it a cornerstone of mid-century American watchmaking. This example is powered by the later and improved Hamilton 505 movement — a hybrid of electric power and mechanical balance.\u003c\/p\u003e\n\u003cp\u003eOriginally a corporate presentation watch, this piece features a silver-tone dial signed by “Rockford Screw Products Co.”. The Screw Company is still active today. The dial is particularly collectible for its unique screw-and-bolt hour markers. It also bears the “Hamilton Electric” logo and a prominent “25” marker, adding to its charm and rarity.\u003c\/p\u003e\n\u003cp\u003eThe 32mm asymmetrical case is crafted in two-tone 10K gold-filled metal with distinctive white-filled lugs — a design that embodies 1950s futurism. A domed acrylic crystal, signed pull-push crown, and classic black leather strap complete the look. Well-preserved and fully inspected, this Hamilton Pacer is a standout example of early electric innovation and bold American design — a must-have for collectors of vintage technology and iconic mid-century style.\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003ch3\u003eGeneral Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Hamilton\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wristwatch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Pacer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear \/ Era:\u003c\/strong\u003e 1950s - Vintage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Men's\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e United States - U.S.A.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDial \u0026amp; Display\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e Analog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver-tone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeatures:\u003c\/strong\u003e Screws \u0026amp; Bolts as hour markers and matching gold-tone hands. Marked \"Rockford Screw Products Co.\", \"25\" and \"Hamilton Electric\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMovement\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Electric with a traditional mechanical watch balance wheel and gear train.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e Hamilton 505\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eJewels:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement Functions:\u003c\/strong\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 8px;\"\u003e\n\u003cli\u003eBattery powered\u003c\/li\u003e\n\u003cli\u003eCentral hours and minutes\u003c\/li\u003e\n\u003cli\u003eCentral seconds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Reserve:\u003c\/strong\u003e -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e -\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCase \u0026amp; Band\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Two-tone. 10K gold filled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Shape:\u003c\/strong\u003e Asymmetrical with white filled lugs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel:\u003c\/strong\u003e Fixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal:\u003c\/strong\u003e Acrylic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack:\u003c\/strong\u003e Snap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown:\u003c\/strong\u003e Signed pull-push\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Resistance:\u003c\/strong\u003e -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Type:\u003c\/strong\u003e Black leather two-piece strap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Back Markings:\u003c\/strong\u003e Hamilton - 10K Gold Filled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCase Measurements (mm)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Size:\u003c\/strong\u003e 32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Lug to Lug:\u003c\/strong\u003e 46\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug Width:\u003c\/strong\u003e 17\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Width:\u003c\/strong\u003e 17\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAdditional Info\u003c\/h2\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox \u0026amp; Papers:\u003c\/strong\u003e YES - Original Box. No papers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e The watch is in good condition, some signs of wear consistent with age and use, a solid case and dial. Brand new strap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtras:\u003c\/strong\u003e This timepiece has been fully inspected and authenticated by our in-house watchmaker, confirming that it runs accurately. It is ready to wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHistory \u0026amp; Legacy of Hamilton\u003c\/h2\u003e\n\u003cp\u003eThe Hamilton Electric marked a pioneering shift in watchmaking by drawing on an unconventional power source—what the company described as “an energy cell no larger than a shirt button.” Although battery-powered, the movement remained largely mechanical, using no transistors or electronic components, making it a significant precursor to the modern quartz revolution. Development began around 1946 in Lancaster, Pennsylvania under the codename \"Project X,\" but it wasn’t until January 3, 1957, at a press conference held at the Savoy Plaza Hotel in New York City, that Hamilton officially unveiled the world’s first electric watch: the Hamilton Electric 500. Available in a range of bold, asymmetrical case designs, all featured the innovative caliber 500 (or 500A). However, the technology faced challenges—the 500’s delicate electrical contact system proved too fragile, leading to widespread servicing issues and poor acceptance among watchmakers. Rushing to be first to market, Hamilton struggled with early quality control, resulting in many units being returned for adjustments. It wasn’t until 1961, with the release of the improved caliber 505, that many of these problems were addressed, offering a more reliable and serviceable movement.\u003c\/p\u003e\n\u003ch2\u003eAbout Second Hand Horology\u003c\/h2\u003e\n\u003cp\u003eAt SECOND HAND HOROLOGY, we offer a curated selection of watches ranging from vintage to modern, including both brand-new and pre-owned timepieces. We’re committed to quality, accuracy, and integrity. Our listings feature:\u003c\/p\u003e\n\u003cp\u003eProfessional, unedited photography and clear, transparent descriptions. Every watch is thoroughly inspected and securely packaged to ensure a confident, seamless buying experience.\u003c\/p\u003e\n\u003cp\u003eWe also warmly invite you to visit our physical shop and explore the collection in person.\u003c\/p\u003e\n\u003ch2\u003eContact Us\u003c\/h2\u003e\n\u003cp\u003eWe appreciate you checking out our listing! Don’t hesitate to reach out with questions, offers, or just to talk watches — we love what we do and enjoy connecting with fellow enthusiasts.\u003c\/p\u003e\n\u003cp\u003eThank you for your business—we truly appreciate your support and look forward to serving you again in the future!\u003c\/p\u003e\n\u003cp\u003eWA-5742\u003c\/p\u003e","brand":"Hamilton","offers":[{"title":"Default Title","offer_id":45629427220674,"sku":"WA-5742","price":1260.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/7027\/9106\/files\/PXL_20250917_202637806_2_89ef92d3-0d9b-4d12-a2ba-ca66b30c34ac.jpg?v=1759337445","url":"https:\/\/secondhandhorology.com\/products\/vintage-hamilton-pacer-rockford-electric-watch","provider":"SECOND HAND HOROLOGY","version":"1.0","type":"link"}