Seiko Cal. 6683 - 320

The 6683-320 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6683 caliber with 25j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-0dfc8702cd0d]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1977

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