Seiko Cal. 5630 - 617

The Seiko 5630-617 represents an important milestone in Seiko's 1973 lineup. Powered by the 5630 caliber with 28j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-2d66c159061c]

Also known as: World Timer, Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1973

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