NA 027
DIN Standards Committee Optics and Precision Mechanics
Standards
[CURRENT]
DIN 8319-2
DIN 8319-2
Chronometer; wrist chronometer with piezo-electric oscillating system, designation, requirements, testing
Title (German)
Chronometer; Armbandchronometer mit piezoelektrischem Schwingsystem, Begriffe, Anforderungen, Prüfung