Seiko Cal. 4425 - 639

Released in 1997, the Cal. 4425 with design code 639 was part of Seiko's domestic market collection. With its 18mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-e04dc47fa0ba]

Also known as: Silverwave, Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1997

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