Seiko Cal. 4443 - 731

The Seiko 4443-731 represents an important milestone in Seiko's 1975 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-bc352f8f2b2e]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1975

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