Seiko Cal. 3871 - 381

Seiko 3871-381

This Automatic model from 1965 features a 42mm Two-Tone case. With its 18mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-ffb7a5665fe1]

Also known as: UFO

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
42mm
Case Thickness
15.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
180m
Dial Color
Navy
Jewels
18j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1965

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