Seiko Cal. 3878 - 674

The Seiko 3878-674 represents an important milestone in Seiko's 1985 lineup. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-b23319537ce7]

Also known as: Monster, Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1985

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