Seiko Cal. 6641 - 461

The Seiko 6641-461 represents an important milestone in Seiko's 1980 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-ac536cfef661]

Also known as: Shogun, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1980

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