Seiko Cal. 5633 - 831

Seiko 5633-831

This Automatic model from 1985 features a 42mm PVD Black case. With its 20mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-873a19365d1d]

Also known as: Sportsmatic, Flighty

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
42mm
Case Thickness
13.0mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Cream
Jewels
36j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1985

Related Models

seikata-wm-873a19365d1d