Seiko Cal. 5615 - 138

Seiko 5615-138

This Spring Drive model from 1971 features a 43mm Titanium case. With its 19mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-73e3abed2f62]

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
43mm
Case Thickness
15.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
100m
Dial Color
White
Jewels
25j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1971

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