Seiko Cal. 6648 - 218

The Seiko 6648-218 represents an important milestone in Seiko's 1973 lineup. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-66ea0141ca39]

Also known as: Tuna, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1973

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