Seiko Cal. 4530 - 640

The Seiko 4530-640 represents an important milestone in Seiko's 1970 lineup. With its 22mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-ff409546cb74]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1970

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