Seiko Cal. 4422 - 378

Seiko 4422-378

The Seiko 4422-378 represents an important milestone in Seiko's 1989 lineup. Powered by the 4422 caliber with 30j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-1d59d4c45499]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
41mm
Case Thickness
12.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Black
Jewels
30j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1989

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