Seiko Cal. 6636 - 723

The 6636-723 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6636 caliber with 22j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-34519544c604]

Also known as: World Timer, Crown

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1965

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