Seiko Cal. 4440 - 451

The Seiko 4440-451 represents an important milestone in Seiko's 1991 lineup. With its 20mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-564a05170c37]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1991

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