Seiko Cal. 6337 - 425

The Seiko 6337-425 represents an important milestone in Seiko's 1997 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-576991b79b87]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1997

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