Seiko Cal. 5640 - 244

Seiko 5640-244

This Kinetic model from 1969 features a 35mm Titanium case. Powered by the 5640 caliber with 28j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-8d3f12527aac]

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
35mm
Case Thickness
11.7mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Navy
Jewels
28j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1969

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