The 1970’s GLYCINE AIRMAN “Pumpkin” SST vintage Pilot’s watch was a premier choice by Jet Pilots in the era. These SST watches are less common than the earlier Glycine Airman models. This watch allows the owner to keep time in two different time zones. The hands only rotate once a day and display military time. These watches are large in size, measuring a massive 42mm. across. The two tone (A.M.-P.M.) dial is original as are the hands. The case is in very fine shape overall, with both crowns being original. The original bisected black and gray dial has the original hands and lume-very clean. The movement with the (pull out crown) hacking function working perfectly. The Glycine Airman SST was used by many Jet pilots throughout the world, due to its easy-to-read dial and handsome looks. THis watch comes with the original bracelet. These were unsigned and correct. This Glycine Airman SST is as fine as you will ever find.