Seiko Cal. 6642 - 470

The Seiko 6642-470 represents an important milestone in Seiko's 1981 lineup. Powered by the 6642 caliber with 17j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-112344b84c9f]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1981

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