Seiko Cal. 5631 - 553

The 5631-553 is a sought-after Kinetic piece from Seiko's golden era. With its 20mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-eff3db539e21]

Also known as: Crown, Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1966

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