Seiko Cal. 6331 - 127

Released in 1984, the Cal. 6331 with design code 127 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-5d9f14d35e48]

Also known as: Monster, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1984

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