The 4R72 is Seiko's gilt (gold-toned) skeletonized automatic movement, the branded version of the NH72A. Features gold-plated finish with Côtes de Genève decorated rotor. Used in Seiko open-heart models with premium finishing.
Movement Type
Automatic
Jewel Count
24 jewels
Power Reserve
41h
Frequency
21,600 vph (6 Hz)
Diameter
27.4mm
Height
5.32mm
Display Type
Analog
Rotor Type
bidirectional
Winding
Magic Lever
Shock Protection
Diashock
BRAND
SeikoTYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2018CALIBER FAMILY
4RCOUNTRY
JapanALSO KNOWN AS
