Seiko Cal. 5634 - 438

The 5634-438 is a sought-after Quartz piece from Seiko's golden era. With its 19mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-54edc6694bbc]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1981

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