Seiko Cal. 4445 - 521

The Seiko 4445-521 represents an important milestone in Seiko's 1983 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-5cca5324c346]

Also known as: Sumo, Emperor

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1983

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