Seiko Cal. 4558 - 903

The Seiko 4558-903 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-dd418e5b7767]

Also known as: Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1975

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