Seiko Cal. 6635 - 676

The Seiko 6635-676 represents an important milestone in Seiko's 1972 lineup. With its 18mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-0cae632c82bd]

Also known as: Tuna, Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1972

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