Seiko Cal. 6634 - 853

The Seiko 6634-853 represents an important milestone in Seiko's 1967 lineup. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-ade65ac9631f]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1967

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