Seiko Cal. 4523 - 561

The Seiko 4523-561 represents an important milestone in Seiko's 1975 lineup. Powered by the 4523 caliber with 21j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-fa7c73327c7f]

Also known as: Samurai, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1975

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