Seiko Cal. 6645 - 841

The Seiko 6645-841 represents an important milestone in Seiko's 1979 lineup. With its 20mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-dd650e149906]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1979

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