Seiko Cal. 5646 - 175

The Seiko 5646-175 represents an important milestone in Seiko's 1977 lineup. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-57c54daeede6]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1977

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