The ASTRON SSH077J1 watch is infallible in any situation: light, extremely robust thanks to the use of highly scratch-resistant titanium and its lightness. Featuring Seiko's patented "Super clear" sapphire crystal, a perpetual calendar and a record autonomy of approximately 6 months, this watch is a true technological feat. From a design standpoint, the slightly shimmering blue of the dial recalls the light of nebulae in astronomy