Seiko Cal. 5634 - 398

The 5634-398 is a sought-after Quartz piece from Seiko's golden era. With its 22mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-6ed06a3b0cec]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1971

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