Seiko Cal. 6642 - 431

The Seiko 6642-431 represents an important milestone in Seiko's 1969 lineup. Powered by the 6642 caliber with 31j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-c8b5c359e8eb]

Also known as: Pogue

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1969

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