Seiko Cal. 4581 - 640

The Seiko 4581-640 represents an important milestone in Seiko's 1989 lineup. It features a Silver dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-f6f0eb3c1def]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1989

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