Seiko Cal. 4423 - 278

The Seiko 4423-278 represents an important milestone in Seiko's 1985 lineup. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-73d86151e09f]

Also known as: Pogue, Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1985

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