Seiko Cal. 6631 - 310

Released in 1996, the Cal. 6631 with design code 310 was part of Seiko's domestic market collection. It features a White dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-9d26518ca9ac]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1996

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