Seiko Cal. 5638 - 420

The Seiko 5638-420 represents an important milestone in Seiko's 1994 lineup. With its 21mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-455bf643ed89]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1994

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