Seiko Cal. 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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