Seiko Astron GPS Solar Big Date SSE147

Stainless steel case with super-hard coating (rose gold color) (SSE153)
Ceramic bezel
Sapphire crystal with super-clear coating
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Diameter: 45.5mm, Thickness: 13.0mm
Silicone strap
Three-fold clasp with push button release