Seiko Cal. 6331 - 870

The 6331-870 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-5d88f6423a31]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1988

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