Seiko Cal. 4557 - 686

The Seiko 4557-686 represents an important milestone in Seiko's 1965 lineup. Powered by the 4557 caliber with 27j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-ba732692b631]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

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