Seiko Cal. 5657 - 621

The Seiko 5657-621 represents an important milestone in Seiko's 1985 lineup. Powered by the 5657 caliber with 21j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-9bbe2180b525]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1985

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