Seiko SUR311 Essentials Collection Watch with the serial number engraved

with the serial number engraved on each caseback

Celebrates Seiko Prospex's ongoing efforts to promote ocean exploration and conservationAutomatic diver with manual winding capability21

blue uni-directional rotating elapsed timing bezel and tri-fold push button release clasp with secure lock and extender

The watch comes with a pastel green rubber strap

It is fitted with the Caliber 80 automatic movement with up to 80 hours of power reserve

Seiko SUR311 Essentials Collection Watch with the serial number engravedEssentials CollectionBlack dialDate calendarLumiBrite handsSapphire crystalCase diameter: 40. 2 mmStainless steel case and braceletWater resistant to 10 bar, 100 meters (330 feet)Caliber 6N52