Seiko Cal. 5664 - 837

The 5664-837 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5664 caliber with 27j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-52cef8d8a169]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1970

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