Seiko Cal. 3878 - 286

The Seiko 3878-286 represents an important milestone in Seiko's 1991 lineup. It features a White dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-35d7339b4009]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1991

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