Seiko Cal. 4440 - 256

The Seiko 4440-256 represents an important milestone in Seiko's 1985 lineup. Powered by the 4440 caliber with 20j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-1a5c820ab7d9]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1985

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