Seiko Cal. 5644 - 438

Seiko 5644-438

This Hand-Winding model from 1969 features a 42mm Gold-Plated case. With its 19mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-71508bf4b1dd]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1969

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seikata-wm-71508bf4b1dd