Seiko Cal. 4423 - 237

The Seiko 4423-237 represents an important milestone in Seiko's 1990 lineup. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-64b00248b390]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1990

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