Seiko Cal. 6640 - 884

Seiko 6640-884

This Spring Drive model from 1982 features a 39mm Two-Tone case. With its 19mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-fd0407e181c4]

Also known as: Turtle, UFO

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
39mm
Case Thickness
14.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
33j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1982

Related Models

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