Seiko Cal. 6648 - 987

The Seiko 6648-987 represents an important milestone in Seiko's 1971 lineup. Powered by the 6648 caliber with 31j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-e7738e887ea3]

Also known as: Shogun, Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1971

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