Seiko 5 Sports Stainless Steel 42.5 MM GMT Automatic Blue Dial Watch SSK003K1

Lug-to-lug:46.0mm

Crystal: Hardlex with lenses

LumiBrite: Lumibrite on hands and index(es)

Clasp: Three-fold clasp with push button release

Water Resistance: 10 bar

Features

See-through case back

Screw case back

Rotating bezel

Three-fold clasp with secure lock