Seiko Cal. 0731 - 633

Seiko 0731-633

This Kinetic model from 1971 features a 46mm PVD Black case. With its 18mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-36731762aba0]

Also known as: Monster, UFO

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
46mm
Case Thickness
13.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
White
Jewels
22j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1971

Related Models

seikata-wm-36731762aba0