Seiko Cal. 5641 - 878

Seiko 5641-878

This Quartz model from 1971 features a 46mm Titanium case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-1a9c1649efe1]

Also known as: Tuna, Silverwave

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
46mm
Case Thickness
9.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
140m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1971

Related Models

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