Seiko Cal. 5658 - 988

The Seiko 5658-988 represents an important milestone in Seiko's 1978 lineup. Powered by the 5658 caliber with 25j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-70e452f8d8f3]

Also known as: Rally, Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1978

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