Seiko Cal. 4448 - 351

The Seiko 4448-351 represents an important milestone in Seiko's 1969 lineup. Powered by the 4448 caliber with 21j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-4c7c337162f9]

Also known as: Navigator, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1969

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