Seiko Cal. 5271 - 687

The Seiko 5271-687 represents an important milestone in Seiko's 1974 lineup. It features a Silver dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-8565b1aaf3f2]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1974

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