Seiko Cal. 6621 - 979

Seiko 6621-979

The Seiko 6621-979 represents an important milestone in Seiko's 1987 lineup. Powered by the 6621 caliber with 20j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-503915261e0f]

Also known as: Helmet, UFO

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
70m
Dial Color
Cream
Jewels
20j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1987

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seikata-wm-503915261e0f