Seiko Cal. 6661 - 573

The Seiko 6661-573 represents an important milestone in Seiko's 1988 lineup. With its 19mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-d59724e6542c]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1988

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