Mechanical automatic with a power reserve of 50 hours
Calibre AN330 for GMT and Date functions (based on SW-330 modified per Armand Nicolet’s specifications).
 
Gradient dial with luminous indexes and hands.
Stainless steel 316L, screwed in crown, unidirectional turning bezel with acrylic insert showing the 24 hours,screwed back.
 
Acrylic crystal with lens on the date