Seiko Cal. 4518 - 490

The Seiko 4518-490 represents an important milestone in Seiko's 1987 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-69fac77fbe4c]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1987

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