Seiko Cal. 5631 - 936

Seiko 5631-936

This Automatic model from 1974 features a 39mm Stainless Steel case. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-0ae978f60936]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
8.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Black
Jewels
17j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1974

Related Models

seikata-wm-0ae978f60936