Seiko Cal. 3871 - 187

The Seiko 3871-187 represents an important milestone in Seiko's 1986 lineup. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-68d5f38f3055]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1986

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