Seiko Cal. 6660 - 494

The Seiko 6660-494 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-51d4dc604fdf]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1973

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