Seiko Cal. 4431 - 116

Seiko 4431-116

This Kinetic model from 1977 features a 44mm Two-Tone case. With its 21mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-4ea2f6c97568]

Also known as: Monster, Sportsmatic

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
44mm
Case Thickness
8.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Cream
Jewels
36j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1977

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