Seiko Cal. 5669 - 637

The 5669-637 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5669 caliber with 20j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-6485027977e6]

Also known as: Samurai, Silverwave

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1968

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