Seiko Cal. 4423 - 445

The 4423-445 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4423 caliber with 32j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-c013429ebe34]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Champagne

Jewels

32j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1991

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