Seiko Cal. 4440 - 315

The Seiko 4440-315 represents an important milestone in Seiko's 1976 lineup. Powered by the 4440 caliber with 23j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-2bd19312408f]

Also known as: Sea Horse, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1976

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