Seiko Cal. 6621 - 406

Seiko 6621-406

The Seiko 6621-406 represents an important milestone in Seiko's 1985 lineup. Powered by the 6621 caliber with 20j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-487ab95f0081]

Also known as: Monster, Sumo

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
9.1mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1985

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seikata-wm-487ab95f0081