Seiko Cal. 7177 - 513

The Seiko 7177-513 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-1adf7c3654b6]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1975

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