Seiko Cal. 6642 - 455

The Seiko 6642-455 represents an important milestone in Seiko's 1986 lineup. Powered by the 6642 caliber with 32j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-a1d2aa666bee]

Also known as: Bullhead, Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1986

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