Seiko Cal. 4423 - 356

The Seiko 4423-356 represents an important milestone in Seiko's 1981 lineup. It features a Silver dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-6ef86249162b]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1981

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