Seiko Cal. 7156 - 987

The Seiko 7156-987 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-4202ed2abe0c]

Also known as: Monster, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1966

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