Seiko Cal. 5660 - 686

The Seiko 5660-686 represents an important milestone in Seiko's 1965 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-b4baface3af3]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

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