Seiko Cal. 6331 - 807

The Seiko 6331-807 represents an important milestone in Seiko's 1974 lineup. It features a White dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-63cb37c0d4e5]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1974

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