Seiko Cal. 6331 - 856

The Seiko 6331-856 represents an important milestone in Seiko's 1991 lineup. It features a Green dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-5c5154d7044a]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1991

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