Seiko Cal. 4543 - 637

Seiko 4543-637

This Hand-Winding model from 1967 features a 35mm Stainless Steel case. With its 21mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-aa599b75ba3f]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
13.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Black
Jewels
21j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1967

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seikata-wm-aa599b75ba3f