Seiko Cal. 4528 - 184

The Seiko 4528-184 represents an important milestone in Seiko's 1974 lineup. Powered by the 4528 caliber with 19j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-e15bd0356e73]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1974

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