New Grand Seiko Heritage Collection Hi-Beat 40mm Rikka Green Automatic SBGH271. Brand New Grand Seiko Heritage Collection Hi-Beat Seasons Edition Watch. The Green Dial is inspired by Summer (Rikka) Season. This watch is 100% unworn and comes with the original box, booklets and tags. Brand: Grand Seiko Series: Heritage Collection Reference: SBGH271 Movement Type: Automatic Case: Stainless steel Dial: Green Case Size: 40 mm Bracelet/Strap: Stainless Steel Our specialty is high-grade quality watches. Get images that make Supersized seem small. Showcase your items with Auctiva's.