Seiko Cal. 6641 - 958

The Seiko 6641-958 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-7e956dd73b75]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1966

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