Seiko Cal. 6660 - 375

The 6660-375 is a sought-after Kinetic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-918396564522]

Also known as: Silverwave

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1982

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