Seiko Cal. 5641 - 492

The Seiko 5641-492 represents an important milestone in Seiko's 1990 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-983666d9d3b2]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1990

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