Seiko Cal. 4447 - 923

The Seiko 4447-923 represents an important milestone in Seiko's 1968 lineup. Powered by the 4447 caliber with 29j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-e3e1c83deb68]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1968

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