Seiko Cal. 6188 - 740

The Seiko 6188-740 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-bf11048e616b]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1978

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