Seiko Cal. 4443 - 391

The 4443-391 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4443 caliber with 24j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-96daf91f91da]

Also known as: Tuna, Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

34mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1978

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