Seiko Cal. 6642 - 271

The Seiko 6642-271 represents an important milestone in Seiko's 1988 lineup. Powered by the 6642 caliber with 25j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-e505988cd53c]

Also known as: Samurai, Monster

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1988

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