Seiko Cal. 6641 - 294

The Seiko 6641-294 represents an important milestone in Seiko's 1986 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-13f161bb7df7]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1986

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