Seiko Cal. 5680 - 644

The Seiko 5680-644 represents an important milestone in Seiko's 1991 lineup. It features a Green dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-2a27917fa698]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1991

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