Seiko Cal. 4421 - 683

The Seiko 4421-683 represents an important milestone in Seiko's 1965 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a4bfd1bc334a]

Also known as: Turtle, Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1965

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