Seiko Cal. 5641 - 652

Released in 1981, the Cal. 5641 with design code 652 was part of Seiko's domestic market collection. With its 19mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-6fb958dcf547]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1981

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