Seiko Cal. 5285 - 301

The Seiko 5285-301 represents an important milestone in Seiko's 1977 lineup. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-9e4cc131ede2]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1977

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