Seiko Cal. 3831 - 972

Seiko 3831-972

This Automatic model from 1987 features a 40mm PVD Black case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-8aa3d7e95d09]

Also known as: Monster, World Timer

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
13.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Cream
Jewels
20j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1987

Related Models

seikata-wm-8aa3d7e95d09