Seiko Cal. 4431 - 548

Seiko 4431-548

This Spring Drive model from 1990 features a 38mm Two-Tone case. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-7c834b105e84]

Also known as: Samurai, Bullhead

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
38mm
Case Thickness
10.1mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
170m
Dial Color
Green
Jewels
30j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1990

Related Models

seikata-wm-7c834b105e84