Seiko Cal. 3870 - 981

Seiko 3870-981

This Quartz model from 1983 features a 40mm Hardlex-Coated Steel case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2ef7b4005347]

Also known as: Monster

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1983

Related Models

seikata-wm-2ef7b4005347