Seiko Cal. 7178 - 581

The Seiko 7178-581 represents an important milestone in Seiko's 1977 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-413b45baef32]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1977

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