NA 027
DIN Standards Committee Optics and Precision Mechanics
Standards
[CURRENT]
DIN 8319-1
DIN 8319-1
Chronometer; wrist-chronometer with frequency of oscillating system ≤ 1000 Hz, designation, requirements, testing
Title (German)
Chronometer; Armbandchronometer mit einer Frequenz des Schwingsystems ≤ 1000 Hz, Begriff, Anforderungen, Prüfung