Seiko Cal. 4548 - 528

The Seiko 4548-528 represents an important milestone in Seiko's 1976 lineup. Powered by the 4548 caliber with 34j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-ed9d3a37e80e]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1976

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