Seiko Cal. 7186 - 977

The Seiko 7186-977 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-13141c3592b7]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1971

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