Seiko Cal. 4590 - 947

Released in 1965, the Cal. 4590 with design code 947 was part of Seiko's domestic market collection. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-9f7e7fb75fbe]

Also known as: Bullhead, Silverwave

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1965

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