Seiko Cal. 5231 - 778

Seiko 5231-778

This Spring Drive model from 1990 features a 46mm PVD Black case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-9a2c93dff246]

Also known as: Bullhead

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
46mm
Case Thickness
9.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Green
Jewels
34j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1990

Related Models

seikata-wm-9a2c93dff246