Seiko Cal. 4416 - 581

The Seiko 4416-581 represents an important milestone in Seiko's 1979 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-5215ca2be4af]

Also known as: Monster, Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1979

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