Seiko Cal. 4431 - 616

Seiko 4431-616

This Kinetic model from 1968 features a 40mm Hardlex-Coated Steel case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-769f02a20672]

Also known as: Silverwave, Arnie

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
11.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
32j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1968

Related Models

seikata-wm-769f02a20672