Seiko Cal. 6641 - 779

Released in 1976, the Cal. 6641 with design code 779 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-cad44c585927]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1976

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