Seiko Cal. 5638 - 987

Seiko 5638-987

The 5638-987 is a sought-after Kinetic piece from Seiko's golden era. With its 21mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-178be598902a]

Also known as: Goldfeather, Sea Horse

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
12.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Black
Jewels
31j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1972

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seikata-wm-178be598902a