Seiko Cal. 3871 - 315

Released in 1992, the Cal. 3871 with design code 315 was part of Seiko's domestic market collection. With its 20mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-bbf34fcdd1a6]

Also known as: Sumo, Panda

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1992

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