Seiko Astron

The Seiko Astron, reference SSJ039J1, has a 41.2 mm titanium case. This is a limited edition of 1500 pieces; the watch has a perpetual calendar and a power reserve indicator. The case is 12 mm thick, with a lug-to-lug measurement of 48.6 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. The watch has a sapphire crystal with a Super Clear coating. The dial has a date display; LumiBrite appears on the hands and indices. Movement accuracy is plus or minus 15 seconds per month without signal reception at temperatures between 5 and 35 degrees Celsius. Fastening is by a three-fold clasp with push-button release and fine adjustment.