Seiko Cal. 6388 - 646

Seiko 6388-646

This Kinetic model from 1972 features a 35mm Hardlex-Coated Steel case. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-2990a80f38b1]

Also known as: Sumo, Crown

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
30m
Dial Color
Silver
Jewels
29j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1972

Related Models

seikata-wm-2990a80f38b1