Seiko Cal. 7187 - 427

The Seiko 7187-427 represents an important milestone in Seiko's 1986 lineup. Powered by the 7187 caliber with 20j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-b8e935d9060d]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1986

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