Seiko Cal. 5666 - 651

The Seiko 5666-651 represents an important milestone in Seiko's 1980 lineup. Powered by the 5666 caliber with 20j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-4fd32090f56b]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1980

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