Seiko Cal. 4531 - 641

Seiko 4531-641

This Hand-Winding model from 1968 features a 43mm Stainless Steel case. With its 20mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-430402ab407d]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
12.6mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
170m
Dial Color
Blue Sunburst
Jewels
30j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1968

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seikata-wm-430402ab407d