The ST90 is a hand-winding quarter-repeater movement. One of Sea-Gull's most complicated movements, chiming the hours and quarter hours on demand. Part of their push into ultra-high complications.
Movement Type
Manual Wind
Jewel Count
21 jewels
Power Reserve
40h
Frequency
21,600 vph (6 Hz)
Display Type
Analog
Shock Protection
Incabloc
BRAND
Seagull Watch GroupTYPE
Manual WindSTATUS
In ProductionMANUFACTURE
In-houseCALIBER FAMILY
ST90COUNTRY
ChinaALSO KNOWN AS
