Seiko Cal. 5663 - 633

Seiko 5663-633

This Kinetic model from 1965 features a 35mm Titanium case. With its 20mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-af0b498b6c1c]

Also known as: Tuna, World Timer

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
35mm
Case Thickness
12.1mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
30m
Dial Color
Green
Jewels
21j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1965

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