Seiko Cal. 6137 - 587

The Seiko 6137-587 represents an important milestone in Seiko's 1969 lineup. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-63bb5567a0ae]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1969

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