Seiko Cal. 4553 - 647

The Seiko 4553-647 represents an important milestone in Seiko's 1987 lineup. Powered by the 4553 caliber with 31j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-5e754a5e70be]

Also known as: Bullhead, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1987

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