Seiko Cal. 5644 - 394

Seiko 5644-394

This Kinetic model from 1978 features a 42mm Titanium case. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-6168757a6704]

Also known as: Tuna, World Timer

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
42mm
Case Thickness
8.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
30j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1978

Related Models

seikata-wm-6168757a6704