Seiko Cal. 7140 - 630

The 7140-630 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-06e55d12dd83]

Also known as: Silverwave, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1998

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