Seiko Cal. 6660 - 448

The Seiko 6660-448 represents an important milestone in Seiko's 1974 lineup. With its 19mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-72d3f3b410e2]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1974

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