Seiko Cal. 6641 - 307

The Seiko 6641-307 represents an important milestone in Seiko's 1992 lineup. With its 22mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-c51770c68c50]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1992

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