Seiko Cal. 6337 - 491

The Seiko 6337-491 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-215a5cb25c2d]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1975

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