Seiko Cal. 4423 - 781

The Seiko 4423-781 represents an important milestone in Seiko's 1967 lineup. Powered by the 4423 caliber with 18j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-76cc6bcfa53e]

Also known as: Tuna, Panda

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1967

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