Seiko Cal. 4491 - 101

The Seiko 4491-101 represents an important milestone in Seiko's 1976 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-57f18384df44]

Also known as: Bullhead, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1976

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