Seiko Cal. 5639 - 865

Released in 1973, the Cal. 5639 with design code 865 was part of Seiko's domestic market collection. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-b46bea2bf563]

Also known as: Pogue, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1973

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