Seiko Cal. 0731 - 147

The Seiko 0731-147 represents an important milestone in Seiko's 1998 lineup. It features a Black dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-543668357e4e]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1998

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