Seiko Cal. 4423 - 256

The Seiko 4423-256 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-9f325d0a4ea0]

Also known as: Panda, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1975

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