[1][2][3] It comprised a single class, with a round bronze medal bearing on the obverse a bust of King Constantine I of Greece, surrounded by the inscription ΚΩΝΣΤΑΝΤΙΝΟΣ ΒΑΣΙΛΕΥΣ ΤΩΝ ΕΛΛΗΝΩΝ 1913 ('Constantine, King of the Hellenes, 1913'), and on the reverse a bust of the Byzantine emperor Basil II the Bulgar Slayer with the inscription ΒΑΣΙΛΕΙΟΣ Β′ 976–1025 ('Basil II, 976–1025') in Byzantine-style letters.

[3] A version for non-military personnel, who rendered services to the Greek military, was also instituted, with blue and white reversed.

[4][3] The period for which the medal was awarded was defined as 20 February – 26 July 1913.

[3] In addition, four battle clasps were authorized for the medal for specific battles and operations:[3] An additional clasp for Macedonia-Thrace was later added to cover landing operations on the Aegean coast during the war.

[3] Only military personnel directly involved in combat was liable for the award of a clasp.