Glycine watch airman 17 sphair the most important features of glycine world time watches of the last decades are combined in the pilot watch airman 17 notable about this 17th airman generation by glycine is the technically extensive setting rubber crown at four o clock with this the ratchet rubber bezel can be blocked which makes it particularly easy to set the second and third time zones and guarantees that the set position remains unchanged the motor element is a movement cal gl293 finis