Seiko Presage Sharp Edged Series Automatic 39.3 MM Watch - SPB231J1 Watch Its origins and its name

Its origins and its name come from the first LONGINES dual time zone wristwatch manufactured in 1925

Caliber Number: 6R64

The movement at the heart of the SBGH341 is the Hi-Beat Caliber 9S85

The SBGW297 is a manually wound mechanical model that features the smallest case diameter of the 44GS lineup at 36

18 karat gold medallion on caseback

Seiko Presage Sharp Edged Series Automatic 39.3 MM Watch - SPB231J1 Watch Its origins and its nameCaliber Number: 6R35 Movement Type: Automatic with manual winding Precision: +25 to 15 seconds per day Power reserve: Approx. 70 hours Jewels: 24 Stop second hand function Date display Case Material: Stainless steel (super hard coating) Case Size Thickness: 11. 1mm Diameter: 39. 3mm Lug to lug: 47. 2mm Crystal: Sapphire crystal Crystal Coating: Anti reflective coating on inner surface LumiBrite: Lumibrite on hands and index(es) Band Material: Horse