Seiko Cal. 3875 - 831

Seiko 3875-831

This Spring Drive model from 1975 features a 42mm Two-Tone case. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-853bfcc97d42]

Also known as: Samurai, Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
42mm
Case Thickness
10.6mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
30m
Dial Color
White
Jewels
24j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1975

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