Seiko Cal. 3871 - 230

Released in 1971, the Cal. 3871 with design code 230 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-ae2cf6e108f7]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1971

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