Seiko Cal. 6651 - 431

The Seiko 6651-431 represents an important milestone in Seiko's 1978 lineup. Powered by the 6651 caliber with 25j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-c8f640b98d68]

Also known as: Shogun, Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1978

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