Seiko Cal. 4538 - 147

The Seiko 4538-147 represents an important milestone in Seiko's 1972 lineup. Powered by the 4538 caliber with 33j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-6d390ac3b64c]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1972

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