WORLDTEMPUS - 24 December 2012Yiah Chan Seiko Astron GPS SAST003 (left) and SAST007 (right) Yiah Chan Billed as the "watch that understands time zones," earlier this year Seiko announced its first solar-powered GPS watch. The Astron GPS uses a patented low-energy receiver that picks up GPS signals and identifies the time zone, time and date using at least four GPS satellites. It covers all 39 time zones, and updates automatically once a day (as well as on demand) to the correct local time when it picks up your location. The technological developments of the Astron GPS Solar are incredibly important to Seiko, who ranks it up there with the company's most groundbreaking developments: the Spring Drive (1999), the Seiko Kinetic (1988), cartier replica watches
its first solar-powered replica watch (1977) and of course, the world's first quartz replica watch launched in 1969, the Astron - after which this is named. The Astron GPS' moniker came about both because Seiko sees it as similarly innovative to its first quartz, and because it is seen as a horological descendent. When you think about the fact that Seiko has accrued some one hundred patents for this watch, including for micro GPS technology, hublot replica watches
it's really quite an astonishing little bit of wrist wear. Many people don't realize that Seiko is a true replica watch manufacture, and one that takes innovation seriously. It is totally vertically integrated and makes all of its own movements, dials, bracelets, cases, hairsprings and mainsprings. Technologically complex, easy to useSo, how is the GPS reception in the Astron activated? By pressing on the pusher at 2 o'clock for six seconds, at which point the seconds hand will jump to 6 o'clock to let you know that it is ready to receive the signal. The seconds hand will then jump to the hour number indicating how many satellite signals it is trying to get reception from: for example, iwc replica watches
if it jumps to 4 o'clock, it is trying to receive information from four satellites. It will then take between 30 seconds and two minutes to receive these signals, at which point your replica watch will sync. How accurate is it? To one second. If for whatever reason you don't receive a time signal, the accuracy is +/- 15 seconds per month. Seiko Astron GPS SAST001 Yiah Chan The pusher at 4 o'clock is for setting the time zone. A quick push will show your current time zone and then jump back to regular timekeeping. If you push and hold it for more than 4 seconds, you will be able to manually adjust the time zone - use the 2 o'clock (or 4 o'clock) pusher to scroll through the cities listed and then the hands can calibrate to the selected time zone.