Seiko Cal. 7131 - 634

The Seiko 7131-634 represents an important milestone in Seiko's 1983 lineup. It features a White dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-3758b89358ee]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1983

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