Seiko Cal. 5644 - 813

Seiko 5644-813

This Kinetic model from 1970 features a 39mm Titanium case. Powered by the 5644 caliber with 21j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-4c4f04af9086]

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
39mm
Case Thickness
14.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Black
Jewels
21j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1970

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seikata-wm-4c4f04af9086