Seiko Cal. 5648 - 688

The 5648-688 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-1af966db91e2]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1976

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