Seiko Cal. 0721 - 998

Seiko 0721-998

The 0721-998 is a sought-after Quartz piece from Seiko's golden era. Powered by the 0721 caliber with 22j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-85b1eb33e3f1]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
38mm
Case Thickness
11.0mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Black
Jewels
22j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1992

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