{"product_id":"citizen-promaster-sky-eco-drive-rannekello-teras-ca4664-60e","title":"Citizen Promaster Sky Eco-Drive wristwatch, steel, CA4664-60E","description":"\u003ch2\u003eStainless Steel Citizen Promaster Sky Watch with Black Dial, Chronograph and Slide Rule Bezel\u003c\/h2\u003e\n\u003cp\u003eThe slide rule bezel gives this Citizen Promaster Sky watch the look of a pilot's tool: the scales on the bezel can be used to estimate fuel consumption, for example. The black dial has bar indexes and three subdials, and the luminous hands make it easier to read in dim light.\u003c\/p\u003e\u003cp\u003eThe round steel case is 40 mm wide and 13.20 mm thick, which makes this one of the smaller Promaster Sky models. The sapphire crystal has an anti-reflective coating, and the 20 mm wide steel bracelet has a folding clasp. Eco-Drive is charged by light, so the battery never needs replacing, and when fully charged the power reserve is approximately 270 days. Eco-Drive turns 50 years old in 2026. The water resistance of 200 m \/ 20 atm is enough for swimming, water sports, snorkeling and free diving, but the watch is not suitable for scuba diving.\u003c\/p\u003e\n\u003cp\u003eProduct number: CA4664-60E\u003cbr\u003eBrand: Citizen\u003cbr\u003eCollection: Promaster Sky\u003cbr\u003eCategory: Men's watches\u003cbr\u003eMovement: Eco-Drive \/ Solar (Cal. B620)\u003cbr\u003ePower reserve: approximately 270 days when fully charged\u003cbr\u003eAccuracy: ±15 sec\/month\u003cbr\u003eFeatures: Timer \/ chronograph (60 min, 1\/5 sec), date, 24 h display, charge indicator\u003cbr\u003eBezel: Slide rule bezel\u003cbr\u003eCrystal: Sapphire crystal, anti-reflective coating\u003cbr\u003eCase material: Stainless steel\u003cbr\u003eCase color: Silver\/gray\u003cbr\u003eCase width: 40 mm\u003cbr\u003eCase thickness: 13.20 mm\u003cbr\u003eShape: Round\u003cbr\u003eDial color: Black\u003cbr\u003eBracelet material: Stainless steel\u003cbr\u003eBracelet color: Silver\/gray\u003cbr\u003eBracelet width (lug width): 20 mm\u003cbr\u003eClasp: Folding clasp\u003cbr\u003eCase back: Screw-down\u003cbr\u003eWater resistance: 200 m \/ 20 atm\u003cbr\u003eMagnetic resistance: 4,800 A\/m\u003cbr\u003eWeight: 166 g\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes the watch need a battery?\u003c\/strong\u003e\u003cbr\u003eNo. The Eco-Drive movement is charged by light, and when fully charged the power reserve is approximately 270 days.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does water resistance of 200 m \/ 20 atm mean in use?\u003c\/strong\u003e\u003cbr\u003eThe watch is suitable for swimming, water sports, snorkeling, free diving and work in water. It is not suitable for scuba diving, as it is not a diver's watch. The crown and buttons must not be used underwater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat functions does the watch have?\u003c\/strong\u003e\u003cbr\u003eThe watch has a chronograph (60 min, 1\/5 sec), date, 24 h display and charge indicator. The bezel also has a slide rule scale.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the watch large on the wrist?\u003c\/strong\u003e\u003cbr\u003eThe case width is 40 mm, the thickness is 13.20 mm and the lug width is 20 mm. The watch weighs 166 g.\u003c\/p\u003e","brand":"Citizen","offers":[{"title":"Default Title","offer_id":55168171409755,"sku":"CA4664-60E","price":540.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0309\/5291\/5083\/files\/ca4664-60e_f_shot_md.jpg?v=1794495343","url":"https:\/\/laatukoru.com\/products\/citizen-promaster-sky-eco-drive-rannekello-teras-ca4664-60e","provider":"Laatukoru","version":"1.0","type":"link"}