Seiko Cal. 0731 - 189

This Spring Drive model from 1996 features a 39mm Stainless Steel case. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-ab492d9f1a52]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1996

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