Seiko Cal. 4440 - 581

The Seiko 4440-581 represents an important milestone in Seiko's 1969 lineup. Powered by the 4440 caliber with 23j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-861426ce0523]

Also known as: Turtle, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1969

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