Seiko Cal. 4561 - 100

The Seiko 4561-100 represents an important milestone in Seiko's 1972 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-f3358480992a]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1972

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