Seiko Cal. 5660 - 577

The Seiko 5660-577 represents an important milestone in Seiko's 1967 lineup. Powered by the 5660 caliber with 34j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-86b3bafea3f0]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1967

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