Seiko Cal. 4561 - 774

The Seiko 4561-774 represents an important milestone in Seiko's 1976 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-1f4e961a589b]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1976

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