Seiko Cal. 5661 - 143

Released in 1989, the Cal. 5661 with design code 143 was part of Seiko's domestic market collection. With its 21mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-e3df35ba19d0]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1989

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