Seiko Cal. 6665 - 310

The Seiko 6665-310 represents an important milestone in Seiko's 1997 lineup. With its 18mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-1f40d654254f]

Also known as: Monster, Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1997

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