Seiko Prospex Alpinist 39.5 MM Automatic GMT Blue Dial Watch SPB377J1 StockX_Listing_Error high-luminance Full Auto LED backlighting

high-luminance Full Auto LED backlighting

it is also a timepiece aimed at enthusiasts of extreme nautical style

200-meter water resistance

we see many changes in the expressions of nature as the seasons pass

long covered with frost

Seiko Prospex Alpinist 39.5 MM Automatic GMT Blue Dial Watch SPB377J1 StockX_Listing_Error high-luminance Full Auto LED backlightingCaliber Number: 6R54 Movement Type: Automatic with manual winding Precision: +25 to 15 seconds per day Power reserve: Approx. 72 hours(3 days) Jewels: 24 24 hour hand (dual time display function) Stop seconds hand function Case Material: Stainless steel (super hard coating) Case Size Thickness: 13. 6mm Diameter: 39. 5mm Lug to lug: 46. 4mm Crystal: Curved sapphire crystal Crystal Coating: Anti reflective coating on inner surface LumiBrite: LumiBrite