Seiko Cal. 4443 - 280

The Seiko 4443-280 represents an important milestone in Seiko's 1965 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ac481fc9cbb2]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1965

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