Seiko Cal. 6641 - 700

Released in 1981, the Cal. 6641 with design code 700 was part of Seiko's domestic market collection. It features a Black dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-51c0413430c1]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1981

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