Seiko Cal. 3878 - 490

The Seiko 3878-490 represents an important milestone in Seiko's 1995 lineup. With its 22mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-6c338dd6afc1]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1995

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