Seiko Cal. 4590 - 739

The Seiko 4590-739 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-fb312524707d]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1971

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