Seiko Prospex Land Tortoise 42.4 MM Stainless Steel Automatic Watch - SRPG15K1 StockX_Partially_Matched The 62GS was not only

The 62GS was not only Grand Seiko’s first watch with an automatic movement

The HydroConquest GMT is also distinguished by its 41 mm-diameter stainless steel case with screw-down back and crown

Case Size: 43 mm

Crystal: Domed scratch-resistant sapphire crystal with antireflective coating

The dial is inspired by the clear night skies that Japan enjoys at Shūbun

Seiko Prospex Land Tortoise 42.4 MM Stainless Steel Automatic Watch - SRPG15K1 StockX_Partially_Matched The 62GS was not onlyCaliber Number: 4R35 Movement Type: Automatic with manual winding Power reserve: Approx. 41 hours Jewels: 23 Stop seconds hand function Date display Case Material: Stainless steel Case Size Thickness: 11. 7mm Diameter: 42. 4mm Lug to lug: 45. 2mm Crystal: Sapphire crystal LumiBrite: LumiBrite on hands and index(es) Distance between lugs: 20 Water Resistance: 20 bar Rotating bezel Screw down crown Screw case back