Seiko Cal. 7187 - 988

This Spring Drive model from 1971 features a 42mm PVD Black case. Powered by the 7187 caliber with 33j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-3664c978e124]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1971

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