Seiko Cal. 3870 - 315

Seiko 3870-315

This Automatic model from 1984 features a 45mm Hardlex-Coated Steel case. With its 19mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-af24a9c773c5]

Also known as: Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
11.1mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Champagne
Jewels
32j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1984

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