Seiko Cal. 4448 - 979

The Seiko 4448-979 represents an important milestone in Seiko's 1987 lineup. Powered by the 4448 caliber with 30j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-d8bcbb81e65a]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1987

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