Seiko Cal. 7131 - 752

Seiko 7131-752

This Quartz model from 1973 features a 40mm Two-Tone case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-191f184a3f12]

Also known as: Monster, Sportsmatic

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
40mm
Case Thickness
13.4mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Black
Jewels
30j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1973

Related Models

seikata-wm-191f184a3f12