Seiko Cal. 5660 - 324

The Seiko 5660-324 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-0f12e8c6c50e]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1968

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