Seiko Cal. 4448 - 357

Released in 1975, the Cal. 4448 with design code 357 was part of Seiko's domestic market collection. With its 19mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-6a6ee81356eb]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1975

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