Seiko Cal. 7191 - 581

The Seiko 7191-581 represents an important milestone in Seiko's 1988 lineup. Powered by the 7191 caliber with 34j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-ab6195d8cc9f]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1988

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