Seiko Cal. 4446 - 378

The Seiko 4446-378 represents an important milestone in Seiko's 1983 lineup. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-e91b1b3fefdc]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1983

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