{"product_id":"stewart-warner-757-w-portable-hand-tachometer","title":"Stewart-Warner 757-W Portable Hand Tachometer","description":"\u003cdiv\u003e\u003cp\u003eStewart-Warner 757-W Portable Hand Tachometer is a vintage handheld analog tachometer from the 1950s designed to measure rotational speed on rotating shafts. It ships in its original tin can, distinguished by Stewart-Warner's distinctive mid-century yellow-and-blue packaging and manufactured in the United States. Descriptions identify the 757-W as a mechanical, direct-contact tachometer—a compact hand-held instrument used by engineers to gauge rotation rate—with several listings noting a maximum around 4,000 RPM. The device offers an analog readout and a purely mechanical design, reflecting the era before digital tachometry and appealing to collectors and restorers seeking authentic period instrumentation. Its original can and provenance are commonly highlighted by sellers, underscoring its place in Stewart-Warner's long history of automotive and industrial instruments. The model is referenced in vintage catalogs and discussions of hand-held tachometers as part of Stewart-Warner's line, reinforcing its status as a true mid-century tool rather than a modern replacement.\u003c\/p\u003e\u003c\/div\u003e","brand":"Stewart-Warner","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46253668991210,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-011.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/stewart-warner-757-w-portable-hand-tachometer","provider":"GTG Hardware","version":"1.0","type":"link"}