Seiko Cal. 6640 - 410

Released in 1983, the Cal. 6640 with design code 410 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-43ad8557af42]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1983

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