Seiko Cal. 7181 - 739

The Seiko 7181-739 represents an important milestone in Seiko's 1968 lineup. With its 18mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-b604a4757254]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1968

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