Seiko Cal. 6186 - 738

The Seiko 6186-738 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-881221f5a60b]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1975

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