Seiko Cal. 7177 - 991

The Seiko 7177-991 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-32b3511d7f0e]

Also known as: Turtle, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1975

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