Seiko Cal. 5631 - 826

Seiko 5631-826

This Quartz model from 1986 features a 35mm PVD Black case. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-8ade665806b5]

Also known as: Bullhead, Sportsmatic

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
35mm
Case Thickness
13.4mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
130m
Dial Color
Green
Jewels
28j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1986

Related Models

seikata-wm-8ade665806b5