Seiko Cal. 4478 - 446

The Seiko 4478-446 represents an important milestone in Seiko's 1991 lineup. Powered by the 4478 caliber with 27j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-956f9530ca2c]

Also known as: Arnie, Flighty

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1991

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