Movement: Seiko VH31, 2 Jewels Accuracy: -/+15 sec per month
Battery Life: Approx. 2 years
Functions: Super-LumiNova Planetary Hours / Minutes / Star Seconds
Dial: Constellations Super-LumiNova Star Map
Case: Hand-finished 316L Stainless Steel
Crystal: Domed Hesalite
Water Resistance: 5 ATM
Dimensions: 44mm x 11mm (+4mm crystal)
Lug to Lug: 47mm
Strap: 22mm U.S. Horween Leather with Tool-free, Quick-release Springbar System
Wrist Circumference: 6.25"-9" (160mm/225mm)
Weight: 2.9oz (82 grams)