Seiko Cal. 5657 - 798

Seiko 5657-798

This Spring Drive model from 1972 features a 46mm Two-Tone case. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-33460fbb174b]

Also known as: Monster, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
46mm
Case Thickness
12.8mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Green
Jewels
21j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1972

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