Seiko Cal. 5644 - 755

The Seiko 5644-755 represents an important milestone in Seiko's 1977 lineup. It features a Green dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-11674c70653d]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1977

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