Seiko Cal. 7158 - 988

The Seiko 7158-988 represents an important milestone in Seiko's 1968 lineup. Powered by the 7158 caliber with 33j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-f083246bcc4f]

Also known as: Bellmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1968

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