Seiko Cal. 3870 - 178

Seiko 3870-178

This Quartz model from 1982 features a 39mm PVD Black case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-8d8a18d2e5bd]

Also known as: Sumo, World Timer

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
39mm
Case Thickness
12.2mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1982

Related Models

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