Seiko Cal. 5640 - 941

Seiko 5640-941

This Solar model from 1977 features a 38mm Titanium case. With its 18mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-94ca90ad6b06]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
38mm
Case Thickness
9.1mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Black
Jewels
26j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1977

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