Seiko Cal. 6657 - 344

The Seiko 6657-344 represents an important milestone in Seiko's 1984 lineup. With its 18mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-e156c035f02b]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1984

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