Seiko Cal. 4578 - 878

The Seiko 4578-878 represents an important milestone in Seiko's 1969 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-c8b648539a57]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1969

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