Seiko Cal. 4561 - 656

This Quartz model from 1977 features a 44mm Titanium case. With its 18mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-0ea964ce9c11]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1977

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