Seiko Cal. 4448 - 383

Released in 1971, the Cal. 4448 with design code 383 was part of Seiko's domestic market collection. With its 21mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-6bb9cb8cc238]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1971

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