Seiko Cal. 6139 - 102

The Seiko 6139-102 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-11acea420b19]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1971

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