In 2012, Seiko took electronic watchmaking to a new level with the launch of the Astron GPS Solar series. This innovative collection connects to the Global Positioning System (GPS) and adjusts automatically to every time zone* while generating all the energy it needs from light alone.
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Now, they’re expanding this successful lineup with four new models that continue to combine dynamic and robust design with state-of-the-art precision. Powered by Caliber 3X62, the watches are capable of automatically connecting up to twice per day to the GPS satellite network, providing unsurpassed accuracy. They also offer an easy-to-read Watch Status Indicator at 8 o’clock, which displays the receiving process of GPS satellite signals, charging status, leap second data receipt and in-flight mode. This link : https://nanadc.com/best-dive-watches-under-2000/
Like other quartz-powered watches, these solar-powered Seiko men’s watches operate much as conventional timepieces, except with a self-charging battery that never needs to be replaced and stays fully charged in any light. This is made possible by photovoltaic cells embedded in the dials that convert any type of light into energy for the watch. Some have power save modes, which preserve battery life if the wearer leaves their watch in a desk drawer for long periods of time.
This time, it’s the SNE039 Seiko solar chronograph that really steals the show. Part of the Recraft collection, this model is inspired by vintage designs and sports a tachymeter bezel and bright blue sunray-finished dial. Inside is a V157 solar quartz movement that’s rated to +/-15 seconds per month, and the watch has a power reserve of 6 months on a full charge.