Seiko Cal. 3878 - 198

Released in 1988, the Cal. 3878 with design code 198 was part of Seiko's domestic market collection. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-43da31ac283c]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1988

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