Seiko Cal. 4443 - 303

The Seiko 4443-303 represents an important milestone in Seiko's 1978 lineup. Powered by the 4443 caliber with 19j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-fe50017a3635]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1978

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