Seiko Cal. 4443 - 990

The Seiko 4443-990 represents an important milestone in Seiko's 1970 lineup. Powered by the 4443 caliber with 33j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-b7ae85eb0c41]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1970

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