Seiko Cal. 4423 - 745

The Seiko 4423-745 represents an important milestone in Seiko's 1967 lineup. Powered by the 4423 caliber with 25j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-1f80feac3a46]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1967

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