Seiko Cal. 0731 - 301

Released in 1984, the Cal. 0731 with design code 301 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-b0ea79aaf67a]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1984

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