Seiko Cal. 6331 - 428

Released in 1978, the Cal. 6331 with design code 428 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-ea25216d0d23]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1978

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