Seiko Cal. 3877 - 251

The Seiko 3877-251 represents an important milestone in Seiko's 1984 lineup. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-1eb52d15eb69]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1984

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