The 4R37 features date display plus a 24-hour subdial for AM/PM indication. Seiko-branded version of the NH37A. Used in Seiko watches that need dual time zone or AM/PM indicator functionality.
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
2011CALIBER FAMILY
4RCOUNTRY
JapanALSO KNOWN AS
