Seiko Cal. 7131 - 422

Seiko 7131-422

This Automatic model from 1973 features a 46mm Two-Tone case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-a361b859ac79]

Also known as: Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
10.8mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Black
Jewels
22j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1973

Related Models

seikata-wm-a361b859ac79