Seiko Cal. 5630 - 665

Released in 1982, the Cal. 5630 with design code 665 was part of Seiko's domestic market collection. Powered by the 5630 caliber with 19j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-41d47ba0cc7d]

Also known as: World Timer, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1982

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