Only three variants have been confirmed and documented: the "DH" stamp for "Heer Dienstuhr" (Army Service Watch), a simple "D" for all Luftwaffe service watches, and "DU" for "Dienstuhr" (service watch) in barracks and administration. I guarantee you complete satisfaction with all my high quality watches. Please, before the offer of the price closely examine photos. All pictures are actual, you receive what you see!