Seiko Cal. 5638 - 191

The 5638-191 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5638 caliber with 28j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-9924c9ba6315]

Also known as: Rally, Goldfeather

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1970

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