Seiko Cal. 6331 - 755

Released in 1990, the Cal. 6331 with design code 755 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-5185fd97de92]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1990

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