Seiko Cal. 7027 - 591

The Seiko 7027-591 represents an important milestone in Seiko's 1977 lineup. With its 19mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-0a4e28612f73]

Also known as: Shogun, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1977

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