Seiko Cal. 0733 - 638

The Seiko 0733-638 represents an important milestone in Seiko's 1986 lineup. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-507d0877123e]

Also known as: Sumo, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1986

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