Seiko 5 Sports U.S. Special Creation SRPK18 Longines while the screwdown see-through caseback

while the screwdown see-through caseback provides a view of the caliber 6R64 29-jewel automatic movement with manual winding capability

4mm Crystal Curved Hardlex Band Material Calfskin Lug width 13

Furthermore

It clearly displays the time in two different time zones: home time and local time

Seiko 5 Sports U.S. Special Creation SRPK18 Longines while the screwdown see-through casebackSeiko 5 Sports U. S. Special CreationAvailable exclusively in the U. S. Automatic with manual winding capability21,600 vibrations per hourPower reserve: approximately 41 hours24 jewelsGold uni directional rotating elapsed timing bezelBlack dialDay date calendarLuminous hands and markersScrewdown see through case backCase diameter: 42. 5mmStainless steel case and bracelet with gold finishTri fold push button release clasp with lockWater resistant to 10