Seiko Cal. 4548 - 987

The Seiko 4548-987 represents an important milestone in Seiko's 1981 lineup. Powered by the 4548 caliber with 30j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-e8b1621b6974]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1981

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