Seiko Cal. 4427 - 304

Seiko 4427-304

This Quartz model from 1978 features a 36mm PVD Black case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-02d332cd67ac]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
36mm
Case Thickness
8.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1978

Related Models

seikata-wm-02d332cd67ac