Seiko Cal. 5654 - 988

The Seiko 5654-988 represents an important milestone in Seiko's 1971 lineup. Powered by the 5654 caliber with 22j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-ede4e7cedba9]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1971

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