Seiko Cal. 6641 - 413

The Seiko 6641-413 represents an important milestone in Seiko's 1980 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-522dc7ec3a10]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1980

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