Seiko Cal. 0731 - 173

The 0731-173 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-5fae11464bfa]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1981

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