Seiko Cal. 5638 - 767

The 5638-767 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5638 caliber with 32j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-c396db2f9c9d]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1983

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