Seiko Cal. 4561 - 650

This Hand-Winding model from 1973 features a 46mm Hardlex-Coated Steel case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-52dd07355b20]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1973

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