Seiko Cal. 5671 - 831

The 5671-831 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-9de8cc2724d3]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1979

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