Seiko Cal. 6139 - 351

The Seiko 6139-351 represents an important milestone in Seiko's 1966 lineup. With its 19mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-6fdba290e0d2]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1966

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