Seiko Cal. 5640 - 926

Seiko 5640-926

This Automatic model from 1970 features a 35mm Two-Tone case. With its 22mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-329afebf5512]

Also known as: Turtle, Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
35mm
Case Thickness
10.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
190m
Dial Color
Burgundy
Jewels
27j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1970

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