Seiko Cal. 7180 - 757

The Seiko 7180-757 represents an important milestone in Seiko's 1977 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-da9f8a486765]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1977

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