Seiko Cal. 4590 - 720

The Seiko 4590-720 represents an important milestone in Seiko's 1979 lineup. It features a Silver dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-90b103d3dfc1]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1979

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