Seiko Cal. 6181 - 171

The Seiko 6181-171 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-969bc2b6a04f]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1973

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