Seiko Cal. 6390 - 943

The 6390-943 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-bd319367645b]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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