Seiko Cal. 4436 - 723

The Seiko 4436-723 represents an important milestone in Seiko's 1978 lineup. With its 18mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-22ae4f4f0872]

Also known as: Rally, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1978

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