Seiko Cal. 5690 - 641

Seiko 5690-641

This Kinetic model from 1975 features a 38mm Stainless Steel case. Powered by the 5690 caliber with 18j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-9ca1bd4ebe24]

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
15.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1975

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