Seiko Cal. 5644 - 218

The 5644-218 is a sought-after Kinetic piece from Seiko's golden era. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-782cc451fb35]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1986

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