Seiko Cal. 7031 - 230

The 7031-230 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-16cdbb2af3c6]

Also known as: UFO, Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1973

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