Seiko Cal. 6337 - 820

The Seiko 6337-820 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-f78c382aae56]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1966

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