Seiko Cal. 0739 - 678

Released in 1976, the Cal. 0739 with design code 678 was part of Seiko's domestic market collection. With its 19mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-e159fcee8cba]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1976

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