24 jewels48h power reserve28,800 vph (4 Hz)
Eterna automatic manufacture calibre with a two-disc cambered big-date display. Eterna identifies its historic 1504 as the design model, while a secondary reference names 1505; no exact base-calibre link is assigned. The date changes at midnight in less than one second. Current sale of Vaughan watches does not establish ongoing manufacture of this calibre.
Last updated 2 Oct 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
24 jewels
Power Reserve
48h
Frequency
28,800 vph (4 Hz)
Diameter
30mm
Height
4.63mm
Display Type
Analog
Rotor Type
Ball Bearing
Shock Protection
Incabloc
COMPLICATIONS
Big Date
FEATURES
Hand WindingSweep SecondsHacking SecondsQuickset DateInstantaneous Date Change
QUICK FACTS
FOR WATCH DEALERS
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