Seiko Cal. 5644 - 708

Released in 1975, the Cal. 5644 with design code 708 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-3f6be4408fe4]

Also known as: Turtle, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1975

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