Grand Seiko Heritage Collection Spring Drive 5-Days Power Reserve 40mm Watch 44GS 55th Anniversary Limited Edition of 550 Pieces Transparent Caseback Spring Drive Caliber 9RA5: Ensures

Spring Drive Caliber 9RA5: Ensures high precision with ±10 seconds per month accuracy and five-day power reserve

the 24-hour bezel

you’ll find recessed hour markers and open numerals with Super-LumiNova

allowing you to effortlessly keep track of time in two different time zones

This Spring Drive chronograph showcases state-of-the-art precision in measuring both time of day and elapsed time

Grand Seiko Heritage Collection Spring Drive 5-Days Power Reserve 40mm Watch 44GS 55th Anniversary Limited Edition of 550 Pieces Transparent Caseback Spring Drive Caliber 9RA5: EnsuresGrand Seiko 44GS 55th Anniversary Limited Edition Specifications: Material: Ever Brilliant Steel (Corrosion Resistant Stainless Steel with Brilliant White Hue) Caseback: Ever Brilliant Steel and Sapphire Crystal Glass: Box Shaped Sapphire Crystal with Anti Reflective Coating on Inner Surface Case Size: Diameter 40. 0mm, Lug to lug 47. 4mm, Thickness 12. 1mm Band Width: 19mm Caliber: 9RA2 Spring Drive Movement Power Reserve: Approx. 120 hours (5 days)