Seiko Cal. 7158 - 528

This Spring Drive model from 1989 features a 42mm Two-Tone case. Powered by the 7158 caliber with 24j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-e7d47cf2f1a7]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1989

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