Seiko Cal. 4448 - 979

Seiko 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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