Seiko Cal. 6681 - 635

Seiko 6681-635

This Quartz model from 1971 features a 35mm Two-Tone case. With its 19mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-355587e5ffaa]

Also known as: Monster, Baby Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
35mm
Case Thickness
11.8mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
130m
Dial Color
Black
Jewels
33j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1971

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