The 4R35 is the Seiko-branded version of the NH35A, used exclusively in Seiko watches. An upgrade from the 7S26 with hacking and hand-winding functions. The 4R35B has 23 jewels (confirmed by Seiko), developed based on 7S and 6R series design.
Movement Type
Automatic
Jewel Count
23 jewels
Power Reserve
40h
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
