Seiko Cal. 6621 - 681

The Seiko 6621-681 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-9b84550a20c3]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1986

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