Seiko Presage SPB223 Limited Edition Sharp Edge GMT Wave of Seiko Blue Astron black sandblasted ceramic ring on

black sandblasted ceramic ring on the unidirectional turning bezel

Buckle Titanium and 18-karat yellow gold with three-fold clasp with push button release

developed entirely in-house and hand-assembled in its workshops

Strap reference H6057661021

Model: Shell Star Automatic

Seiko Presage SPB223 Limited Edition Sharp Edge GMT Wave of Seiko Blue Astron black sandblasted ceramic ring onCaliber Number 6R64 Movement Type Automatic with manual winding Accuracy +25 to 15 seconds per day Duration Approx. 45 hours Exterior Case Material Stainless steel Crystal Sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite Lumibrite on hands and indexes Clasp Three fold clasp with push button release Other Details Water Resistance 10 bar Case Size Thickness: 13. 7 Diameter: 42. 2 Length: 49. 2 Weight 181. 0 g Other