Seiko Astron

The Seiko Astron, reference SSJ023J1, 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. The dial has a date display; a three-fold clasp with push-button release and fine adjustment fastens the watch. LumiBrite is applied to 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. A sapphire crystal with a Super Clear coating covers the dial.