Seiko Astron GPS Solar Big Date SSE137

Titanium case with super-hard coating
Ceramic bezel
Sapphire crystal with super-clear coating
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Diameter: 44.8mm, Thickness: 13.0mm
Titanium bracelet with super-hard coating
Three-fold clasp with push button release