Seiko Cal. 6366 - 491

The Seiko 6366-491 represents an important milestone in Seiko's 1990 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-dccadfe4901f]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1990

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