Seiko Cal. 4428 - 953

Seiko 4428-953

The Seiko 4428-953 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-1d60afdec092]

Also known as: Turtle, Helmet

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
44mm
Case Thickness
14.0mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
140m
Dial Color
Blue Sunburst
Jewels
34j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1971

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