Seiko Cal. 4423 - 645

The 4423-645 is a sought-after Hand-Winding piece from Seiko's golden era. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-eb8cde22b539]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1976

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