Seiko Prospex

The Seiko Prospex, reference SBPK001, is a GMT watch with a 45 mm steel case. The case is 13.2 mm thick, with a lug-to-lug measurement of 51.8 mm. Solar-powered calibre 5K65 contains 3 jewels and operates for approximately 9 months when fully charged. The dial has a date display. A folding clasp with push-button release and an extender fastens the watch. LumiBrite appears on the hands and indices; movement accuracy is plus or minus 15 seconds per month. A screw-down crown is part of the case; the watch has magnetic resistance. A sapphire crystal with an anti-reflective coating on the inner surface covers the dial.