Seiko Cal. 7139 - 421

The Seiko 7139-421 represents an important milestone in Seiko's 1965 lineup. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-19c3de1ed04b]

Also known as: Tuna, World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1965

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