Seiko Cal. 6138 - 931

The Seiko 6138-931 represents an important milestone in Seiko's 1992 lineup. With its 22mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-ac7f94bd49aa]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1992

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