Seiko Astron

The Seiko Astron, reference SSJ025J1, has a 42 mm titanium case. The watch has a perpetual calendar and a power reserve indicator. The case is 12 mm thick, with a lug-to-lug measurement of 47.9 mm and a water-resistance rating of 100 metres. Solar-powered calibre 3X62 contains 10 jewels and operates for approximately 6 months when fully charged. Over the dial is a sapphire crystal with a Super Clear coating; the dial has a date display. The clasp has a three-fold construction with push-button release and fine adjustment. Movement accuracy is plus or minus 15 seconds per month without signal reception at temperatures between 5 and 35 degrees Celsius. LumiBrite appears on the hands and indices.