Seiko Cal. 4423 - 736

The 4423-736 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4423 caliber with 19j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-f1ef8350a8a1]

Also known as: Helmet, Navigator

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1965

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