Seiko Cal. 6639 - 305

Seiko 6639-305

This Kinetic model from 1978 features a 40mm Titanium case. With its 20mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-78f5678f2775]

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
40mm
Case Thickness
13.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
140m
Dial Color
Green
Jewels
32j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1978

Related Models

seikata-wm-78f5678f2775