Seiko Cal. 5661 - 218

Seiko 5661-218

This Kinetic model from 1979 features a 37mm Stainless Steel case. Powered by the 5661 caliber with 31j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-6d8207865d1e]

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
15.7mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Black
Jewels
31j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1979

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