Seiko Cal. 4448 - 787

This Spring Drive model from 1965 features a 42mm Hardlex-Coated Steel case. Powered by the 4448 caliber with 29j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-0f8d17b96904]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1965

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