Seiko Cal. 6660 - 310

The 6660-310 is a sought-after Kinetic piece from Seiko's golden era. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-2960d4bf8c52]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1980

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