Seiko Cal. 5661 - 109

The Seiko 5661-109 represents an important milestone in Seiko's 1999 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-2c2b5a9baa73]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1999

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