Seiko Cal. 6331 - 390

The Seiko 6331-390 represents an important milestone in Seiko's 1967 lineup. It features a Champagne dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-34c25a03204e]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1967

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