Seiko Cal. 5630 - 542

Released in 1971, the Cal. 5630 with design code 542 was part of Seiko's domestic market collection. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-ab6be57ae4da]

Also known as: Rally, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1971

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