Glycine Watch Combat Sub 40 GL0399. In 1967, efforts were made to replicate the Airman's success in the world of aviation for the people of the land, spawning the Combat collection. As stated in the original manuals, this new Glycine collection is designed and manufactured for the military, sports industry, and all exacting men. Sporting a classic simple dial with superluminova indices, be ready to take on any challenge.