Seiko Cal. 5618 - 639

The 5618-639 is a sought-after Kinetic piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d2ffa1bf6d8e]

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1998

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