Seiko Cal. 7186 - 931

The Seiko 7186-931 represents an important milestone in Seiko's 1980 lineup. It features a Silver dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-8fed3d09adeb]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1980

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