Seiko Cal. 4491 - 516

The Seiko 4491-516 represents an important milestone in Seiko's 1972 lineup. It features a Silver dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-63e9bb65fedf]

Also known as: Bullhead, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1972

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