Seiko Cal. 7187 - 840

This Spring Drive model from 1975 features a 45mm Two-Tone case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-46756f30cdff]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1975

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