Seiko Cal. 4423 - 850

The Seiko 4423-850 represents an important milestone in Seiko's 1992 lineup. Powered by the 4423 caliber with 25j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-ad6d761d29ae]

Also known as: Tuna, Pogue

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1992

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